diff --git a/core/pigo.go b/core/pigo.go
index 4eec8cf..60c530f 100644
--- a/core/pigo.go
+++ b/core/pigo.go
@@ -153,8 +153,8 @@ func (pg *Pigo) classifyRotatedRegion(r, c, s, treeDepth int, a float64, nrows,
 		out  float32
 	)
 
-	qCosTable := []int{256, 251, 236, 212, 181, 142, 97, 49, 0, -49, -97, -142, -181, -212, -236, -251, -256, -251, -236, -212, -181, -142, -97, -49, 0, 49, 97, 142, 181, 212, 236, 251, 256}
-	qSinTable := []int{0, 49, 97, 142, 181, 212, 236, 251, 256, 251, 236, 212, 181, 142, 97, 49, 0, -49, -97, -142, -181, -212, -236, -251, -256, -251, -236, -212, -181, -142, -97, -49, 0}
+	qCosTable := [...]int{256, 251, 236, 212, 181, 142, 97, 49, 0, -49, -97, -142, -181, -212, -236, -251, -256, -251, -236, -212, -181, -142, -97, -49, 0, 49, 97, 142, 181, 212, 236, 251, 256}
+	qSinTable := [...]int{0, 49, 97, 142, 181, 212, 236, 251, 256, 251, 236, 212, 181, 142, 97, 49, 0, -49, -97, -142, -181, -212, -236, -251, -256, -251, -236, -212, -181, -142, -97, -49, 0}
 
 	qsin := s * qSinTable[int(32.0*a)] //s*(256.0*math.Sin(2*math.Pi*a))
 	qcos := s * qCosTable[int(32.0*a)] //s*(256.0*math.Cos(2*math.Pi*a))
diff --git a/core/puploc.go b/core/puploc.go
index b58c42d..7cbe70e 100644
--- a/core/puploc.go
+++ b/core/puploc.go
@@ -160,8 +160,8 @@ func (plc *PuplocCascade) classifyRotatedRegion(r, c, s float32, a float64, tree
 		root                   int
 	)
 
-	qCosTable := []float32{256, 251, 236, 212, 181, 142, 97, 49, 0, -49, -97, -142, -181, -212, -236, -251, -256, -251, -236, -212, -181, -142, -97, -49, 0, 49, 97, 142, 181, 212, 236, 251, 256}
-	qSinTable := []float32{0, 49, 97, 142, 181, 212, 236, 251, 256, 251, 236, 212, 181, 142, 97, 49, 0, -49, -97, -142, -181, -212, -236, -251, -256, -251, -236, -212, -181, -142, -97, -49, 0}
+	qCosTable := [...]float32{256, 251, 236, 212, 181, 142, 97, 49, 0, -49, -97, -142, -181, -212, -236, -251, -256, -251, -236, -212, -181, -142, -97, -49, 0, 49, 97, 142, 181, 212, 236, 251, 256}
+	qSinTable := [...]float32{0, 49, 97, 142, 181, 212, 236, 251, 256, 251, 236, 212, 181, 142, 97, 49, 0, -49, -97, -142, -181, -212, -236, -251, -256, -251, -236, -212, -181, -142, -97, -49, 0}
 
 	qsin := s * qSinTable[int(32.0*a)] //s*(256.0*math.Sin(2*math.Pi*a))
 	qcos := s * qCosTable[int(32.0*a)] //s*(256.0*math.Cos(2*math.Pi*a))