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-rw-r--r--lib/polynomial.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/polynomial.c b/lib/polynomial.c
index 2914fe6..82d8fba 100644
--- a/lib/polynomial.c
+++ b/lib/polynomial.c
@@ -33,7 +33,7 @@ int ts_polynomial(
{
fp_t base = x[0][i];
fp_t exponent = x[1][i];
- if( base < 0.0 && exponent != (fp_t)(long)exponent ) { y[0][i] = 0; continue; }
+ if( base < 0.0 && exponent != (fp_t)(long)exponent ) { y[0][i] = NAN; continue; }
y[0][i] = pow(base, exponent);
}
return 0;