Determinanten nebenlaeufig

main.go

@@ -27,8 +27,25 @@ func checkMat(mat [][]int) {
 func getDet(mat [][]int) int {
 	if len(mat) > 1 {
 		erg := 0
-		neg := 0
+		neg := false
+		var ch = make(chan int)
 		for i := 0; i < len(mat); i++ {
+			go singleDet(mat, neg, i, ch)
+			neg = !neg
+		}
+		for i := 0; i < len(mat); i++ {
+			zw := <-ch
+			erg = erg + zw
+		}
+		return erg
+	} else {
+		return mat[0][0]
+	}
+
+}
+
+func singleDet(mat [][]int, neg bool, i int, ch chan int) {
+	erg := 0
 	mat1 := [][]int{}
 	for j := 0; j < len(mat); j++ {
 		if j == i {
@@ -44,19 +61,12 @@ func getDet(mat [][]int) int {
 		}
 
 	}
-			if neg == 0 {
+	if !neg {
 		erg = erg + mat[i][0]*getDet(mat1)
-				neg = 1
 	} else {
 		erg = erg - mat[i][0]*getDet(mat1)
-				neg = 0
-			}
-		}
-		return erg
-	} else {
-		return mat[0][0]
 	}
-
+	ch <- erg
 }
 
 func outMat(mat [][]int) {