diff options
Diffstat (limited to 'libm/double/simpsn.c')
-rw-r--r-- | libm/double/simpsn.c | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/libm/double/simpsn.c b/libm/double/simpsn.c deleted file mode 100644 index 4eb19460b..000000000 --- a/libm/double/simpsn.c +++ /dev/null @@ -1,81 +0,0 @@ -/* simpsn.c */ -/* simpsn.c - * Numerical integration of function tabulated - * at equally spaced arguments - */ - -/* Coefficients for Cote integration formulas */ - -/* Note: these numbers were computed using 40-decimal precision. */ - -#define NCOTE 8 - -/* 6th order formula */ -/* -static double simcon[] = -{ - 4.88095238095238095E-2, - 2.57142857142857142857E-1, - 3.2142857142857142857E-2, - 3.2380952380952380952E-1, -}; -*/ - -/* 8th order formula */ -static double simcon[] = -{ - 3.488536155202821869E-2, - 2.076895943562610229E-1, - -3.27336860670194003527E-2, - 3.7022927689594356261E-1, - -1.6014109347442680776E-1, -}; - -/* 10th order formula */ -/* -static double simcon[] = -{ - 2.68341483619261397039E-2, - 1.77535941424830313719E-1, - -8.1043570626903960237E-2, - 4.5494628827962161295E-1, - -4.3515512265512265512E-1, - 7.1376463043129709796E-1, -}; -*/ - -/* simpsn.c 2 */ -/* 20th order formula */ -/* -static double simcon[] = -{ - 1.182527324903160319E-2, - 1.14137717644606974987E-1, - -2.36478370511426964E-1, - 1.20618689348187566E+0, - -3.7710317267153304677E+0, - 1.03367982199398011435E+1, - -2.270881584397951229796E+1, - 4.1828057422193554603E+1, - -6.4075279490154004651555E+1, - 8.279728347247285172085E+1, - -9.0005367135242894657916E+1, -}; -*/ - -/* simpsn.c 3 */ -double simpsn( f, delta ) -double f[]; /* tabulated function */ -double delta; /* spacing of arguments */ -{ -extern double simcon[]; -double ans; -int i; - - -ans = simcon[NCOTE/2] * f[NCOTE/2]; -for( i=0; i < NCOTE/2; i++ ) - ans += simcon[i] * ( f[i] + f[NCOTE-i] ); - -return( ans * delta * NCOTE ); -} |