S o, Hello guys today i will shared you about how to create a programme for complex nimber using c programming; So, Without any click bait Let's start Here is the source code for Complex Number Coding: #include <stdio.h> #include <stdlib.h> struct complex { double real, imag; //real and imag of type double }; int main() { int choice, a, b, z; struct complex x, y, c; while(1) { printf("Enter your choice\n"); //choices for operations printf("Press 1. Addition.\n"); printf("Press 2. Subtra tion\n"); printf("Press 3. Multiplication\n"); printf("Press 4. Division\n"); printf("Press 5. Exit\n"); scanf("%d", &choice); if (choice == 5) exit(0); if (choice >= 1 && choice <= 4) { p...