1 /* Author: B. Gough and G. Jungman */ 2 #ifndef __GSL_MACHINE_H__ 3 #define __GSL_MACHINE_H__ 4 5 #include <limits.h> 6 #include <float.h> 7 8 /* magic constants; mostly for the benefit of the implementation */ 9 10 /* -*-MACHINE CONSTANTS-*- 11 * 12 * PLATFORM: Whiz-O-Matic 9000 13 * FP_PLATFORM: IEEE-Virtual 14 * HOSTNAME: nnn.lanl.gov 15 * DATE: Fri Nov 20 17:53:26 MST 1998 16 */ 17 #define GSL_DBL_EPSILON 2.2204460492503131e-16 18 #define GSL_SQRT_DBL_EPSILON 1.4901161193847656e-08 19 #define GSL_ROOT3_DBL_EPSILON 6.0554544523933429e-06 20 #define GSL_ROOT4_DBL_EPSILON 1.2207031250000000e-04 21 #define GSL_ROOT5_DBL_EPSILON 7.4009597974140505e-04 22 #define GSL_ROOT6_DBL_EPSILON 2.4607833005759251e-03 23 #define GSL_LOG_DBL_EPSILON (-3.6043653389117154e+01) 24 25 #define GSL_DBL_MIN 2.2250738585072014e-308 26 #define GSL_SQRT_DBL_MIN 1.4916681462400413e-154 27 #define GSL_ROOT3_DBL_MIN 2.8126442852362996e-103 28 #define GSL_ROOT4_DBL_MIN 1.2213386697554620e-77 29 #define GSL_ROOT5_DBL_MIN 2.9476022969691763e-62 30 #define GSL_ROOT6_DBL_MIN 5.3034368905798218e-52 31 #define GSL_LOG_DBL_MIN (-7.0839641853226408e+02) 32 33 #define GSL_DBL_MAX 1.7976931348623157e+308 34 #define GSL_SQRT_DBL_MAX 1.3407807929942596e+154 35 #define GSL_ROOT3_DBL_MAX 5.6438030941222897e+102 36 #define GSL_ROOT4_DBL_MAX 1.1579208923731620e+77 37 #define GSL_ROOT5_DBL_MAX 4.4765466227572707e+61 38 #define GSL_ROOT6_DBL_MAX 2.3756689782295612e+51 39 #define GSL_LOG_DBL_MAX 7.0978271289338397e+02 40 41 #define GSL_FLT_EPSILON 1.1920928955078125e-07 42 #define GSL_SQRT_FLT_EPSILON 3.4526698300124393e-04 43 #define GSL_ROOT3_FLT_EPSILON 4.9215666011518501e-03 44 #define GSL_ROOT4_FLT_EPSILON 1.8581361171917516e-02 45 #define GSL_ROOT5_FLT_EPSILON 4.1234622211652937e-02 46 #define GSL_ROOT6_FLT_EPSILON 7.0153878019335827e-02 47 #define GSL_LOG_FLT_EPSILON (-1.5942385152878742e+01) 48 49 #define GSL_FLT_MIN 1.1754943508222875e-38 50 #define GSL_SQRT_FLT_MIN 1.0842021724855044e-19 51 #define GSL_ROOT3_FLT_MIN 2.2737367544323241e-13 52 #define GSL_ROOT4_FLT_MIN 3.2927225399135965e-10 53 #define GSL_ROOT5_FLT_MIN 2.5944428542140822e-08 54 #define GSL_ROOT6_FLT_MIN 4.7683715820312542e-07 55 #define GSL_LOG_FLT_MIN (-8.7336544750553102e+01) 56 57 #define GSL_FLT_MAX 3.4028234663852886e+38 58 #define GSL_SQRT_FLT_MAX 1.8446743523953730e+19 59 #define GSL_ROOT3_FLT_MAX 6.9814635196223242e+12 60 #define GSL_ROOT4_FLT_MAX 4.2949672319999986e+09 61 #define GSL_ROOT5_FLT_MAX 5.0859007855960041e+07 62 #define GSL_ROOT6_FLT_MAX 2.6422459233807749e+06 63 #define GSL_LOG_FLT_MAX 8.8722839052068352e+01 64 65 #define GSL_SFLT_EPSILON 4.8828125000000000e-04 66 #define GSL_SQRT_SFLT_EPSILON 2.2097086912079612e-02 67 #define GSL_ROOT3_SFLT_EPSILON 7.8745065618429588e-02 68 #define GSL_ROOT4_SFLT_EPSILON 1.4865088937534013e-01 69 #define GSL_ROOT5_SFLT_EPSILON 2.1763764082403100e-01 70 #define GSL_ROOT6_SFLT_EPSILON 2.8061551207734325e-01 71 #define GSL_LOG_SFLT_EPSILON (-7.6246189861593985e+00) 72 73 /* !MACHINE CONSTANTS! */ 74 75 /* a little internal backwards compatibility */ 76 #define GSL_MACH_EPS GSL_DBL_EPSILON 77 78 /* Here are the constants related to or derived from 79 * machine constants. These are not to be confused with 80 * the constants that define various precision levels 81 * for the precision/error system. 82 * 83 * This information is determined at configure time 84 * and is platform dependent. Edit at your own risk. 85 * 86 * PLATFORM: WHIZ-O-MATIC 87 * CONFIG-DATE: Thu Nov 19 19:27:18 MST 1998 88 * CONFIG-HOST: nnn.lanl.gov 89 */ 90 91 /* machine precision constants */ 92 /* #define GSL_MACH_EPS 1.0e-15 */ 93 #define GSL_SQRT_MACH_EPS 3.2e-08 94 #define GSL_ROOT3_MACH_EPS 1.0e-05 95 #define GSL_ROOT4_MACH_EPS 0.000178 96 #define GSL_ROOT5_MACH_EPS 0.00100 97 #define GSL_ROOT6_MACH_EPS 0.00316 98 #define GSL_LOG_MACH_EPS (-34.54) 99 100 #endif /* __GSL_MACHINE_H__ */ 101