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- # NumPy math library
- #
- # This exports the functionality of the NumPy core math library, aka npymath,
- # which provides implementations of C99 math functions and macros for system
- # with a C89 library (such as MSVC). npymath is available with NumPy >=1.3,
- # although some functions will require later versions. The spacing function is
- # not in C99, but comes from Fortran.
- #
- # On the Cython side, the npymath functions are available without the "npy_"
- # prefix that they have in C, to make this is a drop-in replacement for
- # libc.math. The same is true for the constants, where possible.
- #
- # See the NumPy documentation for linking instructions.
- #
- # Complex number support and NumPy 2.0 half-precision functions are currently
- # not exported.
- #
- # Author: Lars Buitinck
- cdef extern from "numpy/npy_math.h" nogil:
- # Floating-point classification
- long double NAN "NPY_NAN"
- long double INFINITY "NPY_INFINITY"
- long double PZERO "NPY_PZERO" # positive zero
- long double NZERO "NPY_NZERO" # negative zero
- # These four are actually macros and work on any floating-point type.
- int isinf "npy_isinf"(long double) # -1 / 0 / 1
- bint isfinite "npy_isfinite"(long double)
- bint isnan "npy_isnan"(long double)
- bint signbit "npy_signbit"(long double)
- # Math constants
- long double E "NPY_E"
- long double LOG2E "NPY_LOG2E" # ln(e) / ln(2)
- long double LOG10E "NPY_LOG10E" # ln(e) / ln(10)
- long double LOGE2 "NPY_LOGE2" # ln(2)
- long double LOGE10 "NPY_LOGE10" # ln(10)
- long double PI "NPY_PI"
- long double PI_2 "NPY_PI_2" # pi / 2
- long double PI_4 "NPY_PI_4" # pi / 4
- long double NPY_1_PI # 1 / pi; NPY_ because of ident syntax
- long double NPY_2_PI # 2 / pi
- long double EULER "NPY_EULER" # Euler constant (gamma, 0.57721)
- # Low-level floating point manipulation (NumPy >=1.4)
- float copysignf "npy_copysignf"(float, float)
- float nextafterf "npy_nextafterf"(float x, float y)
- float spacingf "npy_spacingf"(float x)
- double copysign "npy_copysign"(double, double)
- double nextafter "npy_nextafter"(double x, double y)
- double spacing "npy_spacing"(double x)
- long double copysignl "npy_copysignl"(long double, long double)
- long double nextafterl "npy_nextafterl"(long double x, long double y)
- long double spacingl "npy_spacingl"(long double x)
- # Float C99 functions
- float sinf "npy_sinf"(float x)
- float cosf "npy_cosf"(float x)
- float tanf "npy_tanf"(float x)
- float sinhf "npy_sinhf"(float x)
- float coshf "npy_coshf"(float x)
- float tanhf "npy_tanhf"(float x)
- float fabsf "npy_fabsf"(float x)
- float floorf "npy_floorf"(float x)
- float ceilf "npy_ceilf"(float x)
- float rintf "npy_rintf"(float x)
- float sqrtf "npy_sqrtf"(float x)
- float log10f "npy_log10f"(float x)
- float logf "npy_logf"(float x)
- float expf "npy_expf"(float x)
- float expm1f "npy_expm1f"(float x)
- float asinf "npy_asinf"(float x)
- float acosf "npy_acosf"(float x)
- float atanf "npy_atanf"(float x)
- float asinhf "npy_asinhf"(float x)
- float acoshf "npy_acoshf"(float x)
- float atanhf "npy_atanhf"(float x)
- float log1pf "npy_log1pf"(float x)
- float exp2f "npy_exp2f"(float x)
- float log2f "npy_log2f"(float x)
- float atan2f "npy_atan2f"(float x, float y)
- float hypotf "npy_hypotf"(float x, float y)
- float powf "npy_powf"(float x, float y)
- float fmodf "npy_fmodf"(float x, float y)
- float modff "npy_modff"(float x, float* y)
- # Long double C99 functions
- long double sinl "npy_sinl"(long double x)
- long double cosl "npy_cosl"(long double x)
- long double tanl "npy_tanl"(long double x)
- long double sinhl "npy_sinhl"(long double x)
- long double coshl "npy_coshl"(long double x)
- long double tanhl "npy_tanhl"(long double x)
- long double fabsl "npy_fabsl"(long double x)
- long double floorl "npy_floorl"(long double x)
- long double ceill "npy_ceill"(long double x)
- long double rintl "npy_rintl"(long double x)
- long double sqrtl "npy_sqrtl"(long double x)
- long double log10l "npy_log10l"(long double x)
- long double logl "npy_logl"(long double x)
- long double expl "npy_expl"(long double x)
- long double expm1l "npy_expm1l"(long double x)
- long double asinl "npy_asinl"(long double x)
- long double acosl "npy_acosl"(long double x)
- long double atanl "npy_atanl"(long double x)
- long double asinhl "npy_asinhl"(long double x)
- long double acoshl "npy_acoshl"(long double x)
- long double atanhl "npy_atanhl"(long double x)
- long double log1pl "npy_log1pl"(long double x)
- long double exp2l "npy_exp2l"(long double x)
- long double log2l "npy_log2l"(long double x)
- long double atan2l "npy_atan2l"(long double x, long double y)
- long double hypotl "npy_hypotl"(long double x, long double y)
- long double powl "npy_powl"(long double x, long double y)
- long double fmodl "npy_fmodl"(long double x, long double y)
- long double modfl "npy_modfl"(long double x, long double* y)
- # NumPy extensions
- float deg2radf "npy_deg2radf"(float x)
- float rad2degf "npy_rad2degf"(float x)
- float logaddexpf "npy_logaddexpf"(float x, float y)
- float logaddexp2f "npy_logaddexp2f"(float x, float y)
- double deg2rad "npy_deg2rad"(double x)
- double rad2deg "npy_rad2deg"(double x)
- double logaddexp "npy_logaddexp"(double x, double y)
- double logaddexp2 "npy_logaddexp2"(double x, double y)
- long double deg2radl "npy_deg2radl"(long double x)
- long double rad2degl "npy_rad2degl"(long double x)
- long double logaddexpl "npy_logaddexpl"(long double x, long double y)
- long double logaddexp2l "npy_logaddexp2l"(long double x, long double y)
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