/trunk/Lib/math.i

# · Swig · 82 lines · 36 code · 22 blank · 24 comment · 0 complexity · 315fcf465d3a714c05a1bff7e47d5855 MD5 · raw file 

    

  1. /* -----------------------------------------------------------------------------
    2. 

  2.  * math.i
    3. 

  3.  *
    4. 

  4.  * SWIG library file for floating point operations.
    5. 

  5.  * ----------------------------------------------------------------------------- */
    6. 

  6. 

  7. %module math
    8. 

  8. %{
    9. 

  9. #include <math.h>
    10. 

  10. %}
    11. 

  11. 

  12. extern double	cos(double x);
    13. 

  13. /* Cosine of x */
    14. 

  14. 

  15. extern double	sin(double x);
    16. 

  16. /* Sine of x */
    17. 

  17. 

  18. extern double	tan(double x);
    19. 

  19. /* Tangent of x */
    20. 

  20. 

  21. extern double	acos(double x);
    22. 

  22. /* Inverse cosine in range [-PI/2,PI/2], x in [-1,1]. */
    23. 

  23. 

  24. extern double	asin(double x);
    25. 

  25. /* Inverse sine in range [0,PI], x in [-1,1]. */
    26. 

  26. 

  27. extern double	atan(double x);
    28. 

  28. /* Inverse tangent in range [-PI/2,PI/2]. */
    29. 

  29. 

  30. extern double	atan2(double y, double x);
    31. 

  31. /* Inverse tangent of y/x in range [-PI,PI]. */
    32. 

  32. 

  33. extern double	cosh(double x);
    34. 

  34. /* Hyperbolic cosine of x */
    35. 

  35. 

  36. extern double	sinh(double x);
    37. 

  37. /* Hyperbolic sine of x */
    38. 

  38. 

  39. extern double	tanh(double x);
    40. 

  40. /* Hyperbolic tangent of x */
    41. 

  41. 

  42. extern double	exp(double x);
    43. 

  43. /* Natural exponential function e^x */
    44. 

  44. 

  45. extern double	log(double x);
    46. 

  46. /* Natural logarithm ln(x), x > 0 */
    47. 

  47. 

  48. extern double	log10(double x);
    49. 

  49. /* Base 10 logarithm, x > 0 */
    50. 

  50. 

  51. extern double	pow(double x, double y);
    52. 

  52. /* Power function x^y. */
    53. 

  53. 

  54. extern double	sqrt(double x);
    55. 

  55. /* Square root. x >= 0 */
    56. 

  56. 

  57. extern double	fabs(double x);
    58. 

  58. /* Absolute value of x */
    59. 

  59. 

  60. extern double	ceil(double x);
    61. 

  61. /* Smallest integer not less than x, as a double */
    62. 

  62. 

  63. extern double	floor(double x);
    64. 

  64. /* Largest integer not greater than x, as a double */
    65. 

  65. 

  66. extern double	fmod(double x, double y);
    67. 

  67. /* Floating-point remainder of x/y, with the same sign as x. */
    68. 

  68. 

  69. #define M_E		2.7182818284590452354
    70. 

  70. #define M_LOG2E		1.4426950408889634074
    71. 

  71. #define M_LOG10E	0.43429448190325182765
    72. 

  72. #define M_LN2		0.69314718055994530942
    73. 

  73. #define M_LN10		2.30258509299404568402
    74. 

  74. #define M_PI		3.14159265358979323846
    75. 

  75. #define M_PI_2		1.57079632679489661923
    76. 

  76. #define M_PI_4		0.78539816339744830962
    77. 

  77. #define M_1_PI		0.31830988618379067154
    78. 

  78. #define M_2_PI		0.63661977236758134308
    79. 

  79. #define M_2_SQRTPI	1.12837916709551257390
    80. 

  80. #define M_SQRT2		1.41421356237309504880
    81. 

  81. #define M_SQRT1_2	0.70710678118654752440
    82.