1 /* ----------------------------------------------------------------------------- 2 * math.i 3 * 4 * SWIG library file for floating point operations. 5 * ----------------------------------------------------------------------------- */ 6 7 %module math 8 %{ 9 #include <math.h> 10 %} 11 12 extern double cos(double x); 13 /* Cosine of x */ 14 15 extern double sin(double x); 16 /* Sine of x */ 17 18 extern double tan(double x); 19 /* Tangent of x */ 20 21 extern double acos(double x); 22 /* Inverse cosine in range [-PI/2,PI/2], x in [-1,1]. */ 23 24 extern double asin(double x); 25 /* Inverse sine in range [0,PI], x in [-1,1]. */ 26 27 extern double atan(double x); 28 /* Inverse tangent in range [-PI/2,PI/2]. */ 29 30 extern double atan2(double y, double x); 31 /* Inverse tangent of y/x in range [-PI,PI]. */ 32 33 extern double cosh(double x); 34 /* Hyperbolic cosine of x */ 35 36 extern double sinh(double x); 37 /* Hyperbolic sine of x */ 38 39 extern double tanh(double x); 40 /* Hyperbolic tangent of x */ 41 42 extern double exp(double x); 43 /* Natural exponential function e^x */ 44 45 extern double log(double x); 46 /* Natural logarithm ln(x), x > 0 */ 47 48 extern double log10(double x); 49 /* Base 10 logarithm, x > 0 */ 50 51 extern double pow(double x, double y); 52 /* Power function x^y. */ 53 54 extern double sqrt(double x); 55 /* Square root. x >= 0 */ 56 57 extern double fabs(double x); 58 /* Absolute value of x */ 59 60 extern double ceil(double x); 61 /* Smallest integer not less than x, as a double */ 62 63 extern double floor(double x); 64 /* Largest integer not greater than x, as a double */ 65 66 extern double fmod(double x, double y); 67 /* Floating-point remainder of x/y, with the same sign as x. */ 68 69 #define M_E 2.7182818284590452354 70 #define M_LOG2E 1.4426950408889634074 71 #define M_LOG10E 0.43429448190325182765 72 #define M_LN2 0.69314718055994530942 73 #define M_LN10 2.30258509299404568402 74 #define M_PI 3.14159265358979323846 75 #define M_PI_2 1.57079632679489661923 76 #define M_PI_4 0.78539816339744830962 77 #define M_1_PI 0.31830988618379067154 78 #define M_2_PI 0.63661977236758134308 79 #define M_2_SQRTPI 1.12837916709551257390 80 #define M_SQRT2 1.41421356237309504880 81 #define M_SQRT1_2 0.70710678118654752440 82 83
