X-Git-Url: https://hackdaworld.org/gitweb/?a=blobdiff_plain;f=math%2Fmath.c;h=54d79fd9cf20533e1867e5933728ac4528021670;hb=000e702c884e337f27ae66b6506ff9f9b613f8a8;hp=6f4345e0124460ebbcb63a0482df9e367e592629;hpb=a9fbc66448c52bc4138176739b33d17ba86b7eae;p=physik%2Fposic.git

diff --git a/math/math.c b/math/math.c
index 6f4345e..54d79fd 100644
--- a/math/math.c
+++ b/math/math.c
@@ -66,6 +66,11 @@ int v3_cmp(t_3dvec *a,t_3dvec *b) {
 	return(memcmp(a,b,sizeof(t_3dvec)));
 }
 
+double v3_scalar_product(t_3dvec *a,t_3dvec *b) {
+
+	return(a->x*b->x+a->y*b->y+a->z*b->z);
+}
+
 double v3_absolute_square(t_3dvec *a) {
 
 	return(a->x*a->x+a->y*a->y+a->z*a->z);