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author | Ian Jauslin <ian.jauslin@roma1.infn.it> | 2015-10-07 12:51:41 +0000 |
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committer | Ian Jauslin <ian.jauslin@roma1.infn.it> | 2015-10-07 13:00:23 +0000 |
commit | 469bdc80712dbf9c12562059dc4594620b59a076 (patch) | |
tree | c6da40a884899110d102d82a7a778f2b3afae702 /src/coefficient.c | |
parent | e7aa6859f08565d58684fa4b9c40fed716f0ba17 (diff) |
Support MPFR floats in numkondov1.4
Remove '-D' option (error tolerance) in numkondo
Diffstat (limited to 'src/coefficient.c')
-rw-r--r-- | src/coefficient.c | 47 |
1 files changed, 46 insertions, 1 deletions
diff --git a/src/coefficient.c b/src/coefficient.c index c26b668..d4cb6eb 100644 --- a/src/coefficient.c +++ b/src/coefficient.c @@ -18,6 +18,10 @@ limitations under the License. #include <stdio.h> #include <stdlib.h> +#include <stdarg.h> +// define MPFR_USE_VA_LIST to enable the use of mpfr_inits and mpfr_clears +#define MPFR_USE_VA_LIST +#include <mpfr.h> #include "definitions.cpp" #include "rational.h" #include "istring.h" @@ -721,7 +725,7 @@ int evalcoef(RCC rccs, Coefficient coef, long double* out){ int i,j; long double num_factor; - *out=0; + *out=0.; // for each monomial for(i=0;i<coef.length;i++){ @@ -737,3 +741,44 @@ int evalcoef(RCC rccs, Coefficient coef, long double* out){ } return(0); } + +// evaluate a coefficient on a vector (using mpfr floats) +int evalcoef_mpfr(RCC_mpfr rccs, Coefficient coef, mpfr_t out){ + int i,j; + mpfr_t num_factor; + // tmp number (do not initialize Z) + mpfr_t x, y, Z; + + // init numbers + mpfr_inits(num_factor, x, y, (mpfr_ptr) NULL); + + mpfr_init(out); + mpfr_set_zero(out, 1); + + // for each monomial + for(i=0;i<coef.length;i++){ + // product of factors + mpfr_set_flt(num_factor, 1., MPFR_RNDN); + for(j=0;j<coef.factors[i].length;j++){ + mpfr_mul(x,num_factor,rccs.values[intlist_find_err(rccs.indices,rccs.length,coef.factors[i].values[j])], MPFR_RNDN); + mpfr_set(num_factor,x, MPFR_RNDN); + } + // denominator + if(coef.denoms[i].power>0){ + mpfr_pow_si(y, rccs.values[intlist_find_err(rccs.indices,rccs.length,coef.denoms[i].index)], coef.denoms[i].power, MPFR_RNDN); + mpfr_div(x, num_factor, y, MPFR_RNDN); + mpfr_set(num_factor, x, MPFR_RNDN); + } + + number_mpfr_val(Z, coef.nums[i]); + mpfr_mul(x, num_factor, Z, MPFR_RNDN); + mpfr_add(y, x, out, MPFR_RNDN); + mpfr_set(out, y, MPFR_RNDN); + mpfr_clear(Z); + } + + // free numbers + mpfr_clears(num_factor, x, y, (mpfr_ptr)NULL); + + return(0); +} |