diff --git a/src/funktion.c b/src/funktion.c
index 471a731..2e9cfe9 100644
--- a/src/funktion.c
+++ b/src/funktion.c
@@ -169,3 +169,33 @@ float Vmultiplier3(float x3,float m) {
     double result  = x3 * m;
     return result;
 }
+double Vparallel(double x1, double x2, double x3, double z1, double z2, double z3) {
+    double i, j, k;
+    double X1, X2, X3;
+    if (x1 > z1) {
+        X1 = x1 / z1;
+        i = X1 * 100;
+    } else {
+        X1 = z1 / x1;
+        i = X1 * 100;
+    }
+    if (x2 > z2) {
+        X2 = x2 / z2;
+        j = X2 * 100;
+    } else {
+        X2 = z2 / x2;
+        j = X2 * 100;
+    }
+    if (x3 > z3) {
+        X3 = x3 / z3;
+        k = X3 * 100;
+    } else {
+        X3 = z3 / x3;
+        k = X3 * 100;
+    }
+    if (i == j && j == k) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
diff --git a/src/funktion.h b/src/funktion.h
index ab237ea..0a6e9f4 100644
--- a/src/funktion.h
+++ b/src/funktion.h
@@ -34,5 +34,6 @@ float Vsubstract3(float x3, float z3);
 float Vmultiplier(float x1,float m);
 float Vmultiplier2(float x2,float m);
 float Vmultiplier3(float x3,float m);
+double Vparallel(double x1, double x2, double x3, double z1, double z2, double z3);
 
 #endif
diff --git a/src/main.c b/src/main.c
index 516598c..7ccf028 100644
--- a/src/main.c
+++ b/src/main.c
@@ -144,5 +144,22 @@ int main()
     x3 = getValue('X');
     m = getValue('M');
     Vmultiplier3(x3, m);
+
+    printf("1. Vektor\n");
+    printf("x eingeben");
+    x1_1 = getValue('X');
+    printf("y eingeben ");
+    x2_2 = getValue('X');
+    printf("z eingeben ");
+    x3_3 = getValue('X');
+
+    printf("2. Vektor\n");
+    printf("a eingeben");
+    z1_1 = getValue('Z');
+    printf("b eingeben");
+    z2_2 = getValue('Z');
+    printf("c eingeben");
+    z3_3 = getValue('Z');
+    Vparallel(x1, x2, x3, z1, z2, z3);
     
 }