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#pragma once

// -----------------------------------------------------------------------
// basic macros

#define math·abs(x) (((x) > 0) ? (x) : (-(x)))
#define math·sgn(x) (((x) > 0) ? (+1) : (((x) == 0) ? (0) : (-1) ))

// -----------------------------------------------------------------------
// elementary functions 

double      math·acos(double);
float       math·acosf(float);

double      math·acosh(double);
float       math·acoshf(float);

double      math·asin(double);
float       math·asinf(float);

double      math·asinh(double);
float       math·asinhf(float);

double      math·atan(double);
float       math·atanf(float);

double      math·atan2(double, double);
float       math·atan2f(float, float);

double      math·atanh(double);
float       math·atanhf(float);

double      math·cbrt(double);
float       math·cbrtf(float);

double      math·ceil(double);
float       math·ceilf(float);

double      math·cos(double);
float       math·cosf(float);

double      math·cosh(double);
float       math·coshf(float);

double      math·erf(double);
float       math·erff(float);

double      math·erfc(double);
float       math·erfcf(float);

double      math·exp(double);
float       math·expf(float);

double      math·exp2(double);
float       math·exp2f(float);

double      math·expm1(double);
float       math·expm1f(float);

double      math·floor(double);
float       math·floorf(float);

int         math·ilogb(double);
int         math·ilogbf(float);

double      math·lgamma(double);
float       math·lgammaf(float);

long long   math·llrint(double);
long long   math·llrintf(float);

long long   math·llround(double);
long long   math·llroundf(float);

double      math·log(double);
float       math·logf(float);

double      math·log10(double);
float       math·log10f(float);

double      math·log1p(double);
float       math·log1pf(float);

double      math·log2(double);
float       math·log2f(float);

double      math·logb(double);
float       math·logbf(float);

long        math·lrint(double);
long        math·lrintf(float);

long        math·lround(double);
long        math·lroundf(float);

double      math·nan(const char *);
float       math·nanf(const char *);

double      math·nearbyint(double);
float       math·nearbyintf(float);

double      math·pow(double, double);
float       math·powf(float, float);

double      math·rint(double);
float       math·rintf(float);

double      math·round(double);
float       math·roundf(float);

double      math·sin(double);
float       math·sinf(float);

double      math·sinh(double);
float       math·sinhf(float);

double      math·sqrt(double);
float       math·sqrtf(float);

double      math·tan(double);
float       math·tanf(float);

double      math·tanh(double);
float       math·tanhf(float);

double      math·tgamma(double);
float       math·tgammaf(float);

double      math·trunc(double);
float       math·truncf(float);

// -----------------------------------------------------------------------
// linear algebra