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1899
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1 /* -----------------------------------------------------------------------------
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2 * math.i
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3 *
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4 * SWIG library file for floating point operations.
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5 * ----------------------------------------------------------------------------- */
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6
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7 %module math
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8 %{
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9 #include <math.h>
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10 %}
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11
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12 extern double cos(double x);
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13 /* Cosine of x */
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14
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15 extern double sin(double x);
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16 /* Sine of x */
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17
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18 extern double tan(double x);
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19 /* Tangent of x */
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20
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21 extern double acos(double x);
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22 /* Inverse cosine in range [-PI/2,PI/2], x in [-1,1]. */
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23
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24 extern double asin(double x);
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25 /* Inverse sine in range [0,PI], x in [-1,1]. */
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26
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27 extern double atan(double x);
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28 /* Inverse tangent in range [-PI/2,PI/2]. */
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29
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30 extern double atan2(double y, double x);
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31 /* Inverse tangent of y/x in range [-PI,PI]. */
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32
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33 extern double cosh(double x);
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34 /* Hyperbolic cosine of x */
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35
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36 extern double sinh(double x);
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37 /* Hyperbolic sine of x */
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38
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39 extern double tanh(double x);
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40 /* Hyperbolic tangent of x */
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41
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42 extern double exp(double x);
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43 /* Natural exponential function e^x */
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44
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45 extern double log(double x);
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46 /* Natural logarithm ln(x), x > 0 */
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47
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48 extern double log10(double x);
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49 /* Base 10 logarithm, x > 0 */
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50
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51 extern double pow(double x, double y);
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52 /* Power function x^y. */
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53
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54 extern double sqrt(double x);
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55 /* Square root. x >= 0 */
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56
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57 extern double fabs(double x);
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58 /* Absolute value of x */
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59
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60 extern double ceil(double x);
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61 /* Smallest integer not less than x, as a double */
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62
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63 extern double floor(double x);
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64 /* Largest integer not greater than x, as a double */
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65
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66 extern double fmod(double x, double y);
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67 /* Floating-point remainder of x/y, with the same sign as x. */
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68
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69 #define M_E 2.7182818284590452354
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70 #define M_LOG2E 1.4426950408889634074
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71 #define M_LOG10E 0.43429448190325182765
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72 #define M_LN2 0.69314718055994530942
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73 #define M_LN10 2.30258509299404568402
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74 #define M_PI 3.14159265358979323846
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75 #define M_PI_2 1.57079632679489661923
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76 #define M_PI_4 0.78539816339744830962
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77 #define M_1_PI 0.31830988618379067154
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78 #define M_2_PI 0.63661977236758134308
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79 #define M_2_SQRTPI 1.12837916709551257390
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80 #define M_SQRT2 1.41421356237309504880
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81 #define M_SQRT1_2 0.70710678118654752440
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82
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