all

Lab5/praticalTask1.c

+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+int main()
+{
+	int n;
+	int i;
+	int j;
+	
+	printf("Please enter an array length: ");
+	scanf("%d", &n);
+	
+	int arr[n];
+	
+	for(i = 0; i < n; i++)
+	{
+		printf("Please enter a value for position %d: ", i);
+		scanf("%d", &arr[i]);
+	}
+	
+	int swap;
+	
+	for(i = 0; i < n; i++)
+	{
+		for(j = 0; j < n-1; j++)
+		{
+			if(arr[j] < arr[j+1])
+			{
+				swap = arr[j];
+				arr[j] = arr[j+1];
+				arr[j+1] = swap; 
+			}
+		}
+	}
+	
+	for(i = 0; i < n; i++)
+	{
+		printf("\n");
+		printf("%d", arr[i]);
+	}
+	
+	return 0;
+	
+}

Lab5/praticalTask2.c

+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+int main()
+{
+	double vert[4][3] = {
+		{1, 4, 6, }, 
+	    {2, -3, 1,}, 
+		{3, 5, 0, }, 
+		{3, 1, -3 }
+	};
+	
+	double mag1;
+	double mag2;
+	
+	double dotPro[6];
+	double result[6];
+	
+	int i;
+	int j;
+	int k = 0;
+	
+	for(i = 0; i < 3; i++)
+	{
+		for(j = i+1; j < 4; j++)
+		{
+			mag1 = sqrt((vert[i][0]*vert[i][0] + vert[i][1]*vert[i][1] + vert[i][2]*vert[i][2]));
+			
+			mag2 = sqrt((vert[j][0]*vert[j][0] + vert[j][1]*vert[j][1] + vert[j][2]*vert[j][2]));
+			
+			dotPro[k] = ((vert[i][0]*vert[j][0])+(vert[i][1]*vert[j][1])+(vert[i][2]*vert[j][2]))/(mag1 * mag2);
+			k++;
+		}
+	}
+	
+	for(i = 0; i < 6; i++)
+	{
+		result[i] = acos(dotPro[i]);
+		printf(" %lf,", result[i]);
+	}
+	
+}
+