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-rw-r--r--src/auxiliaryFunctions/sign/csigns.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/auxiliaryFunctions/sign/csigns.c b/src/auxiliaryFunctions/sign/csigns.c
index 218314ab..b054046f 100644
--- a/src/auxiliaryFunctions/sign/csigns.c
+++ b/src/auxiliaryFunctions/sign/csigns.c
@@ -14,5 +14,6 @@
#include "abs.h"
floatComplex csigns(floatComplex in) {
+ if ( (creals(in)==0) && (cimags(in)==0) ) return FloatComplex(0,0);
return FloatComplex(creals(in) / cabss(in), cimags(in) / cabss(in));
}