diff options
Diffstat (limited to 'src/utils.c')
-rw-r--r-- | src/utils.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/utils.c b/src/utils.c index 3fe2e23..30a6e34 100644 --- a/src/utils.c +++ b/src/utils.c @@ -112,4 +112,9 @@ void matrix_vector_show(const gsl_matrix *m, const gsl_vector *v, const char *pr } +int sign(double a) { + if ( a < 0 ) return -1; + if ( a > 0 ) return +1; + return 0; +} |