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| author | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
|---|---|---|
| committer | Joe Hunkeler <jhunkeler@gmail.com> | 2015-08-11 16:51:37 -0400 |
| commit | 40e5a5811c6ffce9b0974e93cdd927cbcf60c157 (patch) | |
| tree | 4464880c571602d54f6ae114729bf62a89518057 /unix/hlib/math.h | |
| download | iraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz | |
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'unix/hlib/math.h')
| -rw-r--r-- | unix/hlib/math.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/unix/hlib/math.h b/unix/hlib/math.h new file mode 100644 index 00000000..42aa6ba0 --- /dev/null +++ b/unix/hlib/math.h @@ -0,0 +1,59 @@ +# MATH.H -- Definitions of various mathematical constants. +# Values are given to 20 decimal places. +# From Abramowitz & Stegun, Handbook of Mathematical Functions, Ch. 1. +# LN denotes natural logarithm +# LOG denote base 10 logarithm + + +# Real precision definitions. + +define SQRTOF2 1.4142135623730950488 + +define BASE_E 2.7182818284590452353 +define EXP_PI 23.140692632779269006 + +define LN_2 .69314718055994530942 +define LN_10 2.3025850929940456840 +define LN_PI 1.1447298858494001741 +define LOG_E .43429448190325182765 + +define PI 3.1415926535897932385 +define TWOPI 6.2831853071795864769 +define FOURPI 12.566370614359172953 +define HALFPI 1.5707963267948966192 +define SQRTOFPI 1.7724538509055160273 + +define RADIAN 57.295779513082320877 +define RADTODEG (($1)*RADIAN) +define DEGTORAD (($1)/RADIAN) + +define GAMMA .57721566490153286061 # Euler's constant +define LN_GAMMA (-.54953931298164482234) +define EXP_GAMMA 1.7810724179901979852 + + +# Double precision definitions. + +define DSQRTOF2 1.4142135623730950488d0 + +define DBASE_E 2.7182818284590452353d0 +define DEXP_PI 23.140692632779269006d0 + +define DLN_2 .69314718055994530942d0 +define DLN_10 2.3025850929940456840d0 +define DLN_PI 1.1447298858494001741d0 +define DLOG_E .43429448190325182765d0 + +define DPI 3.1415926535897932385d0 +define DTWOPI 6.2831853071795864769d0 +define DFOURPI 12.566370614359172953d0 +define DHALFPI 1.5707963267948966192d0 +define DSQRTOFPI 1.7724538509055160273d0 + +define DRADIAN 57.295779513082320877d0 +define DRADTODEG (($1)*DRADIAN) +define DDEGTORAD (($1)/DRADIAN) + +define DGAMMA .57721566490153286061d0 # Euler's constant +define DLN_GAMMA (-.54953931298164482234d0) +define DEXP_GAMMA 1.7810724179901979852d0 |