aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--src/geometry.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/geometry.c b/src/geometry.c
index d5845e5d..270db457 100644
--- a/src/geometry.c
+++ b/src/geometry.c
@@ -97,7 +97,7 @@ static double excitation_error(double xl, double yl, double zl,
r = ( ds * sin(al) / sin(tt) ) - k;
- delta = sqrt(2.0 * pow(ds, 2.0) * (1-cos(divergence)));
+ delta = sqrt(2.0 * pow(ds, 2.0) * (1.0-cos(divergence)));
if ( divergence > 0.0 ) {
r += delta;
} else {