M plonk/gates/coset_interpolation_gate.go → plonk/gates/coset_interpolation_gate.go

@@ -32,6 +32,9 @@ degreeInt, err := strconv.ParseUint(degree, 10, 64)
 	if err != nil {
 		panic("invalid degree in CosetInterpolationGate")
 	}
+	if degreeInt < 2 {
+		panic("degree must be at least 2 in CosetInterpolationGate")
+	}
 
 	barycentricWeightsStr := strings.Split(barycentricWeights, ",")
 	barycentricWeightsInt := make([]goldilocks.Element, len(barycentricWeightsStr))