lib/math/localmath.h

   1 /*
   2  * localmath.h - This header is used by the mathematical library.
   3  */
   4 /* $Header$ */
   5
   6 /* some constants (Hart & Cheney) */
   7 #define M_PI            3.14159265358979323846264338327950288
   8 #define M_2PI           6.28318530717958647692528676655900576
   9 #define M_3PI_4         2.35619449019234492884698253745962716
  10 #define M_PI_2          1.57079632679489661923132169163975144
  11 #define M_3PI_8         1.17809724509617246442349126872981358
  12 #define M_PI_4          0.78539816339744830961566084581987572
  13 #define M_PI_8          0.39269908169872415480783042290993786
  14 #define M_1_PI          0.31830988618379067153776752674502872
  15 #define M_2_PI          0.63661977236758134307553505349005744
  16 #define M_4_PI          1.27323954473516268615107010698011488
  17 #define M_E             2.71828182845904523536028747135266250
  18 #define M_LOG2E         1.44269504088896340735992468100189213
  19 #define M_LOG10E        0.43429448190325182765112891891660508
  20 #define M_LN2           0.69314718055994530941723212145817657
  21 #define M_LN10          2.30258509299404568401799145468436421
  22 #define M_SQRT2         1.41421356237309504880168872420969808
  23 #define M_1_SQRT2       0.70710678118654752440084436210484904
  24 #define M_EULER         0.57721566490153286060651209008240243
  25
  26 /* macros for constructing polynomials */
  27 #define POLYNOM1(x, a)  ((a)[1]*(x)+(a)[0])
  28 #define POLYNOM2(x, a)  (POLYNOM1((x),(a)+1)*(x)+(a)[0])
  29 #define POLYNOM3(x, a)  (POLYNOM2((x),(a)+1)*(x)+(a)[0])
  30 #define POLYNOM4(x, a)  (POLYNOM3((x),(a)+1)*(x)+(a)[0])
  31 #define POLYNOM5(x, a)  (POLYNOM4((x),(a)+1)*(x)+(a)[0])
  32 #define POLYNOM6(x, a)  (POLYNOM5((x),(a)+1)*(x)+(a)[0])
  33 #define POLYNOM7(x, a)  (POLYNOM6((x),(a)+1)*(x)+(a)[0])
  34 #define POLYNOM8(x, a)  (POLYNOM7((x),(a)+1)*(x)+(a)[0])
  35 #define POLYNOM9(x, a)  (POLYNOM8((x),(a)+1)*(x)+(a)[0])
  36 #define POLYNOM10(x, a) (POLYNOM9((x),(a)+1)*(x)+(a)[0])
  37 #define POLYNOM11(x, a) (POLYNOM10((x),(a)+1)*(x)+(a)[0])
  38 #define POLYNOM12(x, a) (POLYNOM11((x),(a)+1)*(x)+(a)[0])
  39 #define POLYNOM13(x, a) (POLYNOM12((x),(a)+1)*(x)+(a)[0])
  40
  41 #define M_LN_MAX_D      (M_LN2 * DBL_MAX_EXP)
  42 #define M_LN_MIN_D      (M_LN2 * (DBL_MIN_EXP - 1))