use float32

format/normalize.go

@@ -2,18 +2,18 @@ package format
 
 import "math"
 
-func Normalize(vec []float64) []float64 {
+func Normalize(vec []float32) []float32 {
 	var sum float64
 	for _, v := range vec {
-		sum += v * v
+		sum += float64(v * v)
 	}
 
 	sum = math.Sqrt(sum)
 
-	var norm float64
+	var norm float32
 
 	if sum > 0 {
-		norm = 1.0 / sum
+		norm = float32(1.0 / sum)
 	} else {
 		norm = 0.0
 	}