In: Advanced Math
#include <stdio.h> #include <stdlib.h> #define MAXSIZE 10 void main() { int array[MAXSIZE]; int i, num, power; float x, polySum; printf("Enter the order of the polynomial \n"); scanf("%d", &num); printf("Enter the value of x \n"); scanf("%f", &x); /* Read the coefficients into an array */ printf("Enter %d coefficients \n", num + 1); for (i = 0; i <= num; i++) { scanf("%d", &array[i]); } polySum = array[0]; for (i = 1; i <= num; i++) { polySum = polySum * x + array[i]; } power = num; printf("Given polynomial is: \n"); for (i = 0; i <= num; i++) { if (power < 0) { break; } /* printing proper polynomial function */ if (array[i] > 0) printf(" + "); else if (array[i] < 0) printf(" - "); else printf(" "); printf("%dx^%d ", abs(array[i]), power--); } printf("\n Sum of the polynomial = %6.2f \n", polySum); }
Runtime Test Cases
$ cc pgm.c
$ a.out Enter the order of the polynomial 2 Enter the value of x 2 Enter 3 coefficients 3 2 6 Given polynomial is: + 3x^2 + 2x^1 + 6x^0 Sum of the polynomial = 22.00 $ a.out Enter the order of the polynomial 4 Enter the value of x 1 Enter 5 coefficients 3 -5 6 8 -9 Given polynomial is: + 3x^4 - 5x^3 + 6x^2 + 8x^1 - 9x^0 Sum of the polynomial = 3.00