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796222a3002d04a41570b66e8b523cf79a28c90e
TransPyC/includes/numpy/__init__.py
t 796222a300 snapshot before regression test
2026-07-18 19:25:40 +08:00

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from stdint import *
import stdlib
import string
import vipermath
import stdio
import t, c
import memhub
# ============================================================
# Constants
# ============================================================
MAX_NDIM: t.CDefine = 4
float64: t.CTypedef = t.CDouble
float32: t.CTypedef = t.CFloat
int64: t.CTypedef = t.CLong
int32: t.CTypedef = t.CInt
uint8: t.CTypedef = t.CUnsignedChar
pi: t.CDefine = 3.14159265358979323846
e: t.CDefine = 2.71828182845904523536
# ============================================================
# ndarray - generic n-dimensional array (PEP 695)
#
# Element type T is a numeric type (t.CDouble / t.CFloat / t.CInt / ...).
# T is erased to i8* at the IR level but each ndarray[T] instantiation
# generates specialized code (data access uses T's load/store width).
#
# Default usage: ndarray[t.CDouble] for floating point.
# ============================================================
@t.Object
class ndarray[T]:
data: T | t.CPtr
shape: t.CArray[t.CSizeT, MAX_NDIM]
strides: t.CArray[t.CSizeT, MAX_NDIM]
ndim: t.CInt
size: t.CSizeT
owns_data: t.CInt
pool: memhub.MemManager | t.CPtr
def __new__(self, pool: memhub.MemManager | t.CPtr, n: t.CSizeT):
self.pool = pool
self.data = pool.alloc(n * T.__sizeof__())
if self.data:
memset(self.data, 0, n * T.__sizeof__())
self.ndim = 1
self.size = n
self.shape[0] = n
self.strides[0] = 1
self.owns_data = 1
def __add__(self, other: ndarray[T] | t.CPtr) -> ndarray[T] | t.CPtr:
result: ndarray[T] | t.CPtr = _empty_like(self)
if not result: return None
i: t.CSizeT = 0
while i < self.size:
result.data[i] = self.data[i] + other.data[i]
i += 1
return result
def __sub__(self, other: ndarray[T] | t.CPtr) -> ndarray[T] | t.CPtr:
result: ndarray[T] | t.CPtr = _empty_like(self)
if not result: return None
i: t.CSizeT = 0
while i < self.size:
result.data[i] = self.data[i] - other.data[i]
i += 1
return result
def __mul__(self, other: ndarray[T] | t.CPtr) -> ndarray[T] | t.CPtr:
result: ndarray[T] | t.CPtr = _empty_like(self)
if not result: return None
i: t.CSizeT = 0
while i < self.size:
result.data[i] = self.data[i] * other.data[i]
i += 1
return result
def __truediv__(self, other: ndarray[T] | t.CPtr) -> ndarray[T] | t.CPtr:
result: ndarray[T] | t.CPtr = _empty_like(self)
if not result: return None
i: t.CSizeT = 0
while i < self.size:
if other.data[i] != T(0):
result.data[i] = self.data[i] / other.data[i]
else:
result.data[i] = T(0)
i += 1
return result
def __floordiv__(self, other: ndarray[T] | t.CPtr) -> ndarray[T] | t.CPtr:
result: ndarray[T] | t.CPtr = _empty_like(self)
if not result: return None
i: t.CSizeT = 0
while i < self.size:
if other.data[i] != T(0):
result.data[i] = vipermath.floor(self.data[i] / other.data[i])
else:
result.data[i] = T(0)
i += 1
return result
def __mod__(self, other: ndarray[T] | t.CPtr) -> ndarray[T] | t.CPtr:
result: ndarray[T] | t.CPtr = _empty_like(self)
if not result: return None
i: t.CSizeT = 0
while i < self.size:
if other.data[i] != T(0):
result.data[i] = vipermath.fmod(self.data[i], other.data[i])
else:
result.data[i] = T(0)
i += 1
return result
def __neg__(self) -> ndarray[T] | t.CPtr:
result: ndarray[T] | t.CPtr = _empty_like(self)
if not result: return None
i: t.CSizeT = 0
while i < self.size:
result.data[i] = -self.data[i]
i += 1
return result
def __len__(self) -> t.CInt:
if self.ndim > 0: return t.CInt(self.shape[0])
return 0
def at2d(self, row: t.CSizeT, col: t.CSizeT) -> T:
return self.data[row * self.shape[1] + col]
def set2d(self, row: t.CSizeT, col: t.CSizeT, val: T):
self.data[row * self.shape[1] + col] = val
def delete(self):
if self.owns_data and self.data:
self.pool.free(self.data)
self.data = None
self.pool.free(self)
def fill(self, val: T):
i: t.CSizeT = 0
while i < self.size:
self.data[i] = val
i += 1
def copy(self) -> ndarray[T] | t.CPtr:
result: ndarray[T] | t.CPtr = _empty_like(self)
if not result: return None
memcpy(result.data, self.data, self.size * T.__sizeof__())
return result
def reshape(self, new_shape: INTPTR, new_ndim: t.CInt) -> ndarray[T] | t.CPtr:
new_size: t.CSizeT = 1
i: t.CInt = 0
for i in range(new_ndim):
new_size *= t.CSizeT(new_shape[i])
if new_size != self.size: return None
result: ndarray[T] | t.CPtr = _alloc_ndarray(self.pool)
if not result: return None
result.data = self.data
result.pool = self.pool
result.ndim = new_ndim
result.size = self.size
result.owns_data = 0
for i in range(new_ndim):
result.shape[i] = t.CSizeT(new_shape[i])
_compute_strides(result)
return result
def sum(self) -> T:
s: T = T(0)
i: t.CSizeT = 0
while i < self.size:
s += self.data[i]
i += 1
return s
def mean(self) -> T:
if self.size == 0: return T(0)
return self.sum() / T(self.size)
def min(self) -> T:
if self.size == 0: return T(0)
m: T = self.data[0]
i: t.CSizeT = 1
while i < self.size:
if self.data[i] < m: m = self.data[i]
i += 1
return m
def max(self) -> T:
if self.size == 0: return T(0)
m: T = self.data[0]
i: t.CSizeT = 1
while i < self.size:
if self.data[i] > m: m = self.data[i]
i += 1
return m
def argmax(self) -> t.CInt:
if self.size == 0: return -1
m: T = self.data[0]
idx: t.CInt = 0
i: t.CSizeT = 1
while i < self.size:
if self.data[i] > m:
m = self.data[i]
idx = t.CInt(i)
i += 1
return idx
def argmin(self) -> t.CInt:
if self.size == 0: return -1
m: T = self.data[0]
idx: t.CInt = 0
i: t.CSizeT = 1
while i < self.size:
if self.data[i] < m:
m = self.data[i]
idx = t.CInt(i)
i += 1
return idx
def dot(self, other: ndarray[T] | t.CPtr) -> T:
s: T = T(0)
n: t.CSizeT = self.size if (self.size < other.size) else other.size
i: t.CSizeT = 0
while i < n:
s += self.data[i] * other.data[i]
i += 1
return s
def T(self) -> ndarray[T] | t.CPtr:
if self.ndim != 2: return None
rows: t.CSizeT = self.shape[0]
cols: t.CSizeT = self.shape[1]
result: ndarray[T] | t.CPtr = empty2d(self.pool, rows, cols)
if not result: return None
# Swap shape for transpose
result.shape[0] = cols
result.shape[1] = rows
_compute_strides(result)
i: t.CSizeT = 0
while i < rows:
j: t.CSizeT = 0
while j < cols:
result.data[j * rows + i] = self.data[i * cols + j]
j += 1
i += 1
return result
def print_arr(self):
if self.ndim == 1:
printf("[")
i: t.CSizeT = 0
while i < self.size:
if i > 0: printf(", ")
printf("%.4f", self.data[i])
i += 1
printf("]\n")
elif self.ndim == 2:
rows: t.CSizeT = self.shape[0]
cols: t.CSizeT = self.shape[1]
printf("[")
i: t.CSizeT = 0
while i < rows:
if i > 0: printf(" ")
printf("[")
j: t.CSizeT = 0
while j < cols:
if j > 0: printf(", ")
printf("%.4f", self.data[i * cols + j])
j += 1
if i < rows - 1:
printf("]\n")
else:
printf("]]\n")
i += 1
# ============================================================
# Convenience aliases: typed ndarray instantiations
# (must be after class ndarray[T] definition to avoid forward reference)
# ============================================================
Float64Array: t.CTypedef = ndarray[t.CDouble]
Float32Array: t.CTypedef = ndarray[t.CFloat]
Int64Array: t.CTypedef = ndarray[t.CLong]
Int32Array: t.CTypedef = ndarray[t.CInt]
Uint8Array: t.CTypedef = ndarray[t.CUnsignedChar]
# ============================================================
# Internal helpers (specialized for float64 by default)
# Use _alloc_ndarray_t[T] / _empty_like_t[T] for other types
# ============================================================
def _alloc_ndarray(pool: memhub.MemManager | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
a: ndarray[t.CDouble] | t.CPtr = pool.alloc(ndarray[t.CDouble].__sizeof__())
if a:
memset(a, 0, ndarray[t.CDouble].__sizeof__())
return a
def _compute_strides(a: ndarray[t.CDouble] | t.CPtr):
if a.ndim <= 0: return
a.strides[a.ndim - 1] = 1
i: t.CInt = a.ndim - 2
while i >= 0:
a.strides[i] = a.strides[i + 1] * a.shape[i + 1]
i -= 1
def _empty_like(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _alloc_ndarray(a.pool)
if not result: return None
result.data = a.pool.alloc(a.size * t.CDouble.__sizeof__())
if not result.data:
a.pool.free(result)
return None
result.pool = a.pool
result.ndim = a.ndim
result.size = a.size
result.owns_data = 1
i: t.CInt = 0
for i in range(a.ndim):
result.shape[i] = a.shape[i]
_compute_strides(result)
return result
# ============================================================
# Array creation functions (float64 default)
# ============================================================
def array(pool: memhub.MemManager | t.CPtr, data: t.CDouble | t.CPtr, n: t.CSizeT) -> ndarray[t.CDouble] | t.CPtr:
a: ndarray[t.CDouble] | t.CPtr = _alloc_ndarray(pool)
if not a: return None
a.data = pool.alloc(n * t.CDouble.__sizeof__())
if not a.data:
pool.free(a)
return None
memcpy(a.data, data, n * t.CDouble.__sizeof__())
a.pool = pool
a.ndim = 1
a.size = n
a.shape[0] = n
a.strides[0] = 1
a.owns_data = 1
return a
def zeros(pool: memhub.MemManager | t.CPtr, n: t.CSizeT) -> ndarray[t.CDouble] | t.CPtr:
a: ndarray[t.CDouble] | t.CPtr = _alloc_ndarray(pool)
if not a: return None
a.data = pool.alloc(n * t.CDouble.__sizeof__())
if not a.data:
pool.free(a)
return None
memset(a.data, 0, n * t.CDouble.__sizeof__())
a.pool = pool
a.ndim = 1
a.size = n
a.shape[0] = n
a.strides[0] = 1
a.owns_data = 1
return a
def ones(pool: memhub.MemManager | t.CPtr, n: t.CSizeT) -> ndarray[t.CDouble] | t.CPtr:
a: ndarray[t.CDouble] | t.CPtr = zeros(pool, n)
if not a: return None
a.fill(t.CDouble(1.0))
return a
def full(pool: memhub.MemManager | t.CPtr, n: t.CSizeT, val: t.CDouble) -> ndarray[t.CDouble] | t.CPtr:
a: ndarray[t.CDouble] | t.CPtr = zeros(pool, n)
if not a: return None
a.fill(val)
return a
def arange(pool: memhub.MemManager | t.CPtr, start: t.CDouble, stop: t.CDouble, step: t.CDouble) -> ndarray[t.CDouble] | t.CPtr:
if step == t.CDouble(0.0): return None
n: t.CSizeT = 0
if step > t.CDouble(0.0):
v: t.CDouble = start
while v < stop:
n += 1
v += step
else:
v: t.CDouble = start
while v > stop:
n += 1
v += step
if n == 0: return None
a: ndarray[t.CDouble] | t.CPtr = zeros(pool, n)
if not a: return None
i: t.CSizeT = 0
v = start
while i < n:
a.data[i] = v
v += step
i += 1
return a
def linspace(pool: memhub.MemManager | t.CPtr, start: t.CDouble, stop: t.CDouble, num: t.CSizeT) -> ndarray[t.CDouble] | t.CPtr:
if num == 0: return None
a: ndarray[t.CDouble] | t.CPtr = zeros(pool, num)
if not a: return None
if num == 1:
a.data[0] = start
return a
step: t.CDouble = (stop - start) / t.CDouble(num - 1)
i: t.CSizeT = 0
while i < num:
a.data[i] = start + t.CDouble(i) * step
i += 1
return a
def empty2d(pool: memhub.MemManager | t.CPtr, rows: t.CSizeT, cols: t.CSizeT) -> ndarray[t.CDouble] | t.CPtr:
a: ndarray[t.CDouble] | t.CPtr = _alloc_ndarray(pool)
if not a: return None
total: t.CSizeT = rows * cols
a.data = pool.alloc(total * t.CDouble.__sizeof__())
if not a.data:
pool.free(a)
return None
memset(a.data, 0, total * t.CDouble.__sizeof__())
a.pool = pool
a.ndim = 2
a.size = total
a.shape[0] = rows
a.shape[1] = cols
a.owns_data = 1
_compute_strides(a)
return a
def zeros2d(pool: memhub.MemManager | t.CPtr, rows: t.CSizeT, cols: t.CSizeT) -> ndarray[t.CDouble] | t.CPtr:
return empty2d(pool, rows, cols)
def ones2d(pool: memhub.MemManager | t.CPtr, rows: t.CSizeT, cols: t.CSizeT) -> ndarray[t.CDouble] | t.CPtr:
a: ndarray[t.CDouble] | t.CPtr = empty2d(pool, rows, cols)
if not a: return None
a.fill(t.CDouble(1.0))
return a
def eye(pool: memhub.MemManager | t.CPtr, n: t.CSizeT) -> ndarray[t.CDouble] | t.CPtr:
a: ndarray[t.CDouble] | t.CPtr = empty2d(pool, n, n)
if not a: return None
i: t.CSizeT = 0
while i < n:
a.data[i * n + i] = t.CDouble(1.0)
i += 1
return a
def diag(pool: memhub.MemManager | t.CPtr, vals: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
n: t.CSizeT = vals.size
a: ndarray[t.CDouble] | t.CPtr = empty2d(pool, n, n)
if not a: return None
i: t.CSizeT = 0
while i < n:
a.data[i * n + i] = vals.data[i]
i += 1
return a
# ============================================================
# Mathematical functions (element-wise, float64 default)
# ============================================================
def np_abs(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
v: t.CDouble = a.data[i]
result.data[i] = v if v >= t.CDouble(0.0) else -v
i += 1
return result
def np_sqrt(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.sqrt(a.data[i])
i += 1
return result
def np_exp(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.exp(a.data[i])
i += 1
return result
def np_log(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.log(a.data[i])
i += 1
return result
def np_sin(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.sin(a.data[i])
i += 1
return result
def np_cos(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.cos(a.data[i])
i += 1
return result
def np_tan(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.tan(a.data[i])
i += 1
return result
def np_pow(a: ndarray[t.CDouble] | t.CPtr, p: t.CDouble) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.pow(a.data[i], p)
i += 1
return result
# ============================================================
# Scalar operations (float64 default)
# ============================================================
def add_scalar(a: ndarray[t.CDouble] | t.CPtr, s: t.CDouble) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = a.data[i] + s
i += 1
return result
def mul_scalar(a: ndarray[t.CDouble] | t.CPtr, s: t.CDouble) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = a.data[i] * s
i += 1
return result
def sub_scalar(a: ndarray[t.CDouble] | t.CPtr, s: t.CDouble) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = a.data[i] - s
i += 1
return result
def div_scalar(a: ndarray[t.CDouble] | t.CPtr, s: t.CDouble) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
if s != t.CDouble(0.0):
result.data[i] = a.data[i] / s
else:
result.data[i] = t.CDouble(0.0)
i += 1
return result
# ============================================================
# Matrix operations (float64 default)
# ============================================================
def matmul(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
# 2D matrix multiply: a(m,k) x b(k,n) = c(m,n)
if a.ndim != 2 or b.ndim != 2: return None
m: t.CSizeT = a.shape[0]
k: t.CSizeT = a.shape[1]
k2: t.CSizeT = b.shape[0]
n: t.CSizeT = b.shape[1]
if k != k2: return None
c: ndarray[t.CDouble] | t.CPtr = empty2d(a.pool, m, n)
if not c: return None
i: t.CSizeT = 0
while i < m:
j: t.CSizeT = 0
while j < n:
s: t.CDouble = t.CDouble(0.0)
p: t.CSizeT = 0
while p < k:
s += a.data[i * k + p] * b.data[p * n + j]
p += 1
c.data[i * n + j] = s
j += 1
i += 1
return c
def dot_product(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
return a.dot(b)
# ============================================================
# Reduction operations (float64 default)
# ============================================================
def np_sum(a: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
return a.sum()
def np_mean(a: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
return a.mean()
def np_min(a: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
return a.min()
def np_max(a: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
return a.max()
def np_argmax(a: ndarray[t.CDouble] | t.CPtr) -> t.CInt:
return a.argmax()
def np_argmin(a: ndarray[t.CDouble] | t.CPtr) -> t.CInt:
return a.argmin()
# ============================================================
# Utility (float64 default)
# ============================================================
def var(a: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
if a.size == 0: return t.CDouble(0.0)
m: t.CDouble = a.mean()
s: t.CDouble = t.CDouble(0.0)
i: t.CSizeT = 0
while i < a.size:
d: t.CDouble = a.data[i] - m
s += d * d
i += 1
return s / t.CDouble(a.size)
def std(a: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
return vipermath.sqrt(var(a))
def norm(a: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
return vipermath.sqrt(a.dot(a))
def clip(a: ndarray[t.CDouble] | t.CPtr, lo: t.CDouble, hi: t.CDouble) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
v: t.CDouble = a.data[i]
if v < lo: v = lo
if v > hi: v = hi
result.data[i] = v
i += 1
return result
def concatenate(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
if a.ndim != 1 or b.ndim != 1: return None
total: t.CSizeT = a.size + b.size
result: ndarray[t.CDouble] | t.CPtr = zeros(a.pool, total)
if not result: return None
memcpy(result.data, a.data, a.size * t.CDouble.__sizeof__())
memcpy(result.data + a.size, b.data, b.size * t.CDouble.__sizeof__())
return result
def sort_arr(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = a.copy()
if not result: return None
# Simple insertion sort
i: t.CSizeT = 1
while i < result.size:
key: t.CDouble = result.data[i]
j: t.CSizeT = i - 1
while j < result.size and result.data[j] > key:
result.data[j + 1] = result.data[j]
if j == 0: break
j -= 1
if j > 0 or result.data[0] <= key:
result.data[j + 1] = key
else:
result.data[1] = result.data[0]
result.data[0] = key
i += 1
return result
def reverse(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = a.data[a.size - 1 - i]
i += 1
return result
# ============================================================
# Additional math functions (element-wise, float64 default)
# ============================================================
def np_log10(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.log10(a.data[i])
i += 1
return result
def np_log2(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.log2(a.data[i])
i += 1
return result
def np_floor(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.floor(a.data[i])
i += 1
return result
def np_ceil(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.ceil(a.data[i])
i += 1
return result
def np_round(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.round(a.data[i])
i += 1
return result
def np_sign(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
if a.data[i] > t.CDouble(0.0):
result.data[i] = t.CDouble(1.0)
elif a.data[i] < t.CDouble(0.0):
result.data[i] = t.CDouble(-1.0)
else:
result.data[i] = t.CDouble(0.0)
i += 1
return result
def np_tanh(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.tanh(a.data[i])
i += 1
return result
def np_sinh(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.sinh(a.data[i])
i += 1
return result
def np_cosh(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.cosh(a.data[i])
i += 1
return result
def np_arcsin(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.asin(a.data[i])
i += 1
return result
def np_arccos(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.acos(a.data[i])
i += 1
return result
def np_arctan(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.atan(a.data[i])
i += 1
return result
def np_arctan2(y: ndarray[t.CDouble] | t.CPtr, x: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(y)
if not result: return None
i: t.CSizeT = 0
while i < y.size:
result.data[i] = vipermath.atan2(y.data[i], x.data[i])
i += 1
return result
def np_degrees(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.degrees(a.data[i])
i += 1
return result
def np_radians(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = vipermath.radians(a.data[i])
i += 1
return result
def np_isnan(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = t.CDouble(vipermath.isnan(a.data[i]))
i += 1
return result
def np_isinf(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = t.CDouble(vipermath.isinf(a.data[i]))
i += 1
return result
def np_maximum(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = a.data[i] if a.data[i] > b.data[i] else b.data[i]
i += 1
return result
def np_minimum(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = a.data[i] if a.data[i] < b.data[i] else b.data[i]
i += 1
return result
# ============================================================
# Additional array operations (float64 default)
# ============================================================
def cumsum(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
s: t.CDouble = t.CDouble(0.0)
i: t.CSizeT = 0
while i < a.size:
s += a.data[i]
result.data[i] = s
i += 1
return result
def diff(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
if a.size < 2: return None
result: ndarray[t.CDouble] | t.CPtr = zeros(a.pool, a.size - 1)
if not result: return None
i: t.CSizeT = 0
while i < a.size - 1:
result.data[i] = a.data[i + 1] - a.data[i]
i += 1
return result
def flatten(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
result.ndim = 1
result.shape[0] = a.size
result.strides[0] = 1
memcpy(result.data, a.data, a.size * t.CDouble.__sizeof__())
return result
def trace(a: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
if a.ndim != 2: return t.CDouble(0.0)
n: t.CSizeT = a.shape[0] if a.shape[0] < a.shape[1] else a.shape[1]
s: t.CDouble = t.CDouble(0.0)
i: t.CSizeT = 0
while i < n:
s += a.data[i * a.shape[1] + i]
i += 1
return s
def outer(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = empty2d(a.pool, a.size, b.size)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
j: t.CSizeT = 0
while j < b.size:
result.data[i * b.size + j] = a.data[i] * b.data[j]
j += 1
i += 1
return result
def np_where(condition: ndarray[t.CDouble] | t.CPtr, x: ndarray[t.CDouble] | t.CPtr, y: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(x)
if not result: return None
i: t.CSizeT = 0
while i < x.size:
if condition.data[i] != t.CDouble(0.0):
result.data[i] = x.data[i]
else:
result.data[i] = y.data[i]
i += 1
return result
def np_count_nonzero(a: ndarray[t.CDouble] | t.CPtr) -> t.CInt:
count: t.CInt = 0
i: t.CSizeT = 0
while i < a.size:
if a.data[i] != t.CDouble(0.0):
count += 1
i += 1
return count
def np_all(a: ndarray[t.CDouble] | t.CPtr) -> t.CInt:
i: t.CSizeT = 0
while i < a.size:
if a.data[i] == t.CDouble(0.0):
return 0
i += 1
return 1
def np_any(a: ndarray[t.CDouble] | t.CPtr) -> t.CInt:
i: t.CSizeT = 0
while i < a.size:
if a.data[i] != t.CDouble(0.0):
return 1
i += 1
return 0
def np_equal(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = t.CDouble(1.0) if a.data[i] == b.data[i] else t.CDouble(0.0)
i += 1
return result
def np_not_equal(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = t.CDouble(1.0) if a.data[i] != b.data[i] else t.CDouble(0.0)
i += 1
return result
def np_less(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = t.CDouble(1.0) if a.data[i] < b.data[i] else t.CDouble(0.0)
i += 1
return result
def np_greater(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = t.CDouble(1.0) if a.data[i] > b.data[i] else t.CDouble(0.0)
i += 1
return result
def np_less_equal(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = t.CDouble(1.0) if a.data[i] <= b.data[i] else t.CDouble(0.0)
i += 1
return result
def np_greater_equal(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
i: t.CSizeT = 0
while i < a.size:
result.data[i] = t.CDouble(1.0) if a.data[i] >= b.data[i] else t.CDouble(0.0)
i += 1
return result
# ============================================================
# Additional creation functions (float64 default)
# ============================================================
def empty(pool: memhub.MemManager | t.CPtr, n: t.CSizeT) -> ndarray[t.CDouble] | t.CPtr:
return zeros(pool, n)
def full2d(pool: memhub.MemManager | t.CPtr, rows: t.CSizeT, cols: t.CSizeT, val: t.CDouble) -> ndarray[t.CDouble] | t.CPtr:
a: ndarray[t.CDouble] | t.CPtr = empty2d(pool, rows, cols)
if not a: return None
a.fill(val)
return a
def zeros_like(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _alloc_ndarray(a.pool)
if not result: return None
result.data = a.pool.alloc(a.size * t.CDouble.__sizeof__())
if not result.data:
a.pool.free(result)
return None
memset(result.data, 0, a.size * t.CDouble.__sizeof__())
result.pool = a.pool
result.ndim = a.ndim
result.size = a.size
result.owns_data = 1
i: t.CInt = 0
for i in range(a.ndim):
result.shape[i] = a.shape[i]
_compute_strides(result)
return result
def ones_like(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
result: ndarray[t.CDouble] | t.CPtr = _empty_like(a)
if not result: return None
result.fill(t.CDouble(1.0))
return result
def arange1(pool: memhub.MemManager | t.CPtr, stop: t.CDouble) -> ndarray[t.CDouble] | t.CPtr:
return arange(pool, t.CDouble(0.0), stop, t.CDouble(1.0))
def linspace2(pool: memhub.MemManager | t.CPtr, start: t.CDouble, stop: t.CDouble) -> ndarray[t.CDouble] | t.CPtr:
return linspace(pool, start, stop, 50)
def meshgrid(x: ndarray[t.CDouble] | t.CPtr, y: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
# Returns flattened grid pairs - simplified version
# Returns X grid as 2D array (each row is x)
result: ndarray[t.CDouble] | t.CPtr = empty2d(x.pool, y.size, x.size)
if not result: return None
i: t.CSizeT = 0
while i < y.size:
j: t.CSizeT = 0
while j < x.size:
result.data[i * x.size + j] = x.data[j]
j += 1
i += 1
return result
# ============================================================
# Linear algebra helpers (float64 default)
# ============================================================
def det2x2(a: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
# Determinant of 2x2 matrix
if a.ndim != 2: return t.CDouble(0.0)
if a.shape[0] != 2 or a.shape[1] != 2: return t.CDouble(0.0)
return a.data[0] * a.data[3] - a.data[1] * a.data[2]
def inv2x2(a: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
# Inverse of 2x2 matrix
d: t.CDouble = det2x2(a)
if d == t.CDouble(0.0): return None
result: ndarray[t.CDouble] | t.CPtr = empty2d(a.pool, 2, 2)
if not result: return None
result.data[0] = a.data[3] / d
result.data[1] = -a.data[1] / d
result.data[2] = -a.data[2] / d
result.data[3] = a.data[0] / d
return result
def cross3(a: ndarray[t.CDouble] | t.CPtr, b: ndarray[t.CDouble] | t.CPtr) -> ndarray[t.CDouble] | t.CPtr:
# Cross product of 3D vectors
result: ndarray[t.CDouble] | t.CPtr = zeros(a.pool, 3)
if not result: return None
result.data[0] = a.data[1] * b.data[2] - a.data[2] * b.data[1]
result.data[1] = a.data[2] * b.data[0] - a.data[0] * b.data[2]
result.data[2] = a.data[0] * b.data[1] - a.data[1] * b.data[0]
return result
def np_interp(x: t.CDouble, xp: ndarray[t.CDouble] | t.CPtr, fp: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
# 1D linear interpolation
if xp.size == 0: return t.CDouble(0.0)
if x <= xp.data[0]: return fp.data[0]
if x >= xp.data[xp.size - 1]: return fp.data[xp.size - 1]
i: t.CSizeT = 0
while i < xp.size - 1:
if x >= xp.data[i] and x <= xp.data[i + 1]:
t_val: t.CDouble = (x - xp.data[i]) / (xp.data[i + 1] - xp.data[i])
return fp.data[i] + t_val * (fp.data[i + 1] - fp.data[i])
i += 1
return fp.data[xp.size - 1]
def prod(a: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
p: t.CDouble = t.CDouble(1.0)
i: t.CSizeT = 0
while i < a.size:
p *= a.data[i]
i += 1
return p
def median(a: ndarray[t.CDouble] | t.CPtr) -> t.CDouble:
if a.size == 0: return t.CDouble(0.0)
s: ndarray[t.CDouble] | t.CPtr = sort_arr(a)
if not s: return t.CDouble(0.0)
mid: t.CSizeT = a.size / 2
if a.size % 2 == 1:
result: t.CDouble = s.data[mid]
else:
result = (s.data[mid - 1] + s.data[mid]) / t.CDouble(2.0)
s.delete()
return result
def percentile(a: ndarray[t.CDouble] | t.CPtr, q: t.CDouble) -> t.CDouble:
if a.size == 0: return t.CDouble(0.0)
s: ndarray[t.CDouble] | t.CPtr = sort_arr(a)
if not s: return t.CDouble(0.0)
idx: t.CDouble = q / t.CDouble(100.0) * t.CDouble(a.size - 1)
lo: t.CSizeT = t.CSizeT(vipermath.floor(idx))
hi: t.CSizeT = t.CSizeT(vipermath.ceil(idx))
frac: t.CDouble = idx - vipermath.floor(idx)
result: t.CDouble = s.data[lo] + frac * (s.data[hi] - s.data[lo])
s.delete()
return result
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