uploading lab6

fifthLabTask2.c

@@ -20,11 +20,11 @@ int main() {
 			sk = v[i][0] * v[j][0] + v[i][1] * v[j][1] + v[i][2] * v[j][2]; 
 			lenght1 = sqrt(v[i][0] * v[i][0] + v[i][1] * v[i][1] + v[i][2] * v[i][2]); 
 			lenght2 = sqrt(v[j][0] * v[j][0] + v[j][1] * v[j][1] + v[j][2] * v[j][2]); 
-			lenght = lenght1 + lenght2;
+			lenght = lenght1*lenght2;
 			angle = sk/lenght; 
 			x = acos(angle);
 			
-			printf("%lf, ", x);
+			printf("%d, %d, %lf\n",i, j, x);
 			
 			
 		}

sixthlab.c

+#include <stdio.h> 
+#include <math.h> 
+
+int dotProduct(int vector1[3], int vector2[3]);
+
+double vectorMagnitude(int vector[3]);
+
+int main(){ 
+	int i, j, sk;
+	double p, p2, n, nurk;
+	int vector[4][3] = {{1, 4, 6}, 
+		                {2, -3, 1},
+                        {3, 5,  0},
+                        {3, 1, -3}};  
+                  
+   
+   for (i = 0; i <= 2; i++){ 
+	   for (j = i+1; j <= 3; j++){ 
+		   p = vectorMagnitude(vector[i]); 
+		   p2 = vectorMagnitude(vector[j]); 
+		   sk = dotProduct(vector[i], vector[j]); 
+		   n = sk/(p*p2); 
+		   nurk = acosf(n);
+		   printf("%lf\n", nurk*57.295779513); 
+	   }
+   }
+		   
+    return 0;
+}
+
+int dotProduct(int vector1[3], int vector2[3]){ 
+	int dot = 0;  
+	int i;
+	for(i = 0; i < 3; i++){ 
+		dot += vector1[i] * vector2[i]; 
+	} 
+	return dot; 
+}
+
+double vectorMagnitude(int vector[3]){ 
+	int sumOfSquares = 0; 
+	int i; 
+	for(i = 0; i < 3; i++){ 
+		sumOfSquares += vector[i]*vector[i]; 
+	} 
+	double magnitude = sqrt(sumOfSquares); 
+	return magnitude; 
+} 
+
+