pc_math.h 1.9 KB

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  1. /*
  2. * localmath.h - This header is used by the mathematical library.
  3. */
  4. /* $Id$ */
  5. /* some constants (Hart & Cheney) */
  6. #define M_PI 3.14159265358979323846264338327950288
  7. #define M_2PI 6.28318530717958647692528676655900576
  8. #define M_3PI_4 2.35619449019234492884698253745962716
  9. #define M_PI_2 1.57079632679489661923132169163975144
  10. #define M_3PI_8 1.17809724509617246442349126872981358
  11. #define M_PI_4 0.78539816339744830961566084581987572
  12. #define M_PI_8 0.39269908169872415480783042290993786
  13. #define M_1_PI 0.31830988618379067153776752674502872
  14. #define M_2_PI 0.63661977236758134307553505349005744
  15. #define M_4_PI 1.27323954473516268615107010698011488
  16. #define M_E 2.71828182845904523536028747135266250
  17. #define M_LOG2E 1.44269504088896340735992468100189213
  18. #define M_LOG10E 0.43429448190325182765112891891660508
  19. #define M_LN2 0.69314718055994530941723212145817657
  20. #define M_LN10 2.30258509299404568401799145468436421
  21. #define M_SQRT2 1.41421356237309504880168872420969808
  22. #define M_1_SQRT2 0.70710678118654752440084436210484904
  23. #define M_EULER 0.57721566490153286060651209008240243
  24. /* macros for constructing polynomials */
  25. #define POLYNOM1(x, a) ((a)[1]*(x)+(a)[0])
  26. #define POLYNOM2(x, a) (POLYNOM1((x),(a)+1)*(x)+(a)[0])
  27. #define POLYNOM3(x, a) (POLYNOM2((x),(a)+1)*(x)+(a)[0])
  28. #define POLYNOM4(x, a) (POLYNOM3((x),(a)+1)*(x)+(a)[0])
  29. #define POLYNOM5(x, a) (POLYNOM4((x),(a)+1)*(x)+(a)[0])
  30. #define POLYNOM6(x, a) (POLYNOM5((x),(a)+1)*(x)+(a)[0])
  31. #define POLYNOM7(x, a) (POLYNOM6((x),(a)+1)*(x)+(a)[0])
  32. #define POLYNOM8(x, a) (POLYNOM7((x),(a)+1)*(x)+(a)[0])
  33. #define POLYNOM9(x, a) (POLYNOM8((x),(a)+1)*(x)+(a)[0])
  34. #define POLYNOM10(x, a) (POLYNOM9((x),(a)+1)*(x)+(a)[0])
  35. #define POLYNOM11(x, a) (POLYNOM10((x),(a)+1)*(x)+(a)[0])
  36. #define POLYNOM12(x, a) (POLYNOM11((x),(a)+1)*(x)+(a)[0])
  37. #define POLYNOM13(x, a) (POLYNOM12((x),(a)+1)*(x)+(a)[0])
  38. #define M_LN_MAX_D (M_LN2 * DBL_MAX_EXP)
  39. #define M_LN_MIN_D (M_LN2 * (DBL_MIN_EXP - 1))