Question

C Program

Write a program to read an equation

a/b*x^c*fun(alpha)+d/e*x^f*fun(beta)+g

where:

a-f are integers

alpha,beta are angles from 0,360

g is a real number(float)

fun is either sin, cos, or tangent

After reading the equation, and its parameters, ask the user to enter a range for x, and evaluate the given function.

Display a table x, fx with 10 spaces each, and 5 digits of precision.

Answer 1

code:

//declare stdio and math header
//for input output and power functions usage.
#include <stdio.h>
#include<math.h>
int main()
{
//declare required variables.
int a,b,c,d,e,f,alpha,beta,x;
float g;
//read user input.
printf("Enter a,b,c,d,e,f,alpha and beta values:\n");
scanf("%d%d%d%d%d%d%d%d",&a,&b,&c,&d,&e,&f,&alpha,&beta);
//read x range.
printf("Enter range of x: ");
scanf("%d",&x);
//display table along with functon values.
printf("x\t|\tfx\n------------------------\n");
for(int i=0;i<x;i++)
{
printf("%d\t|\t",i);
printf("%.5f\n",(a/b*pow(i,c)*sin(alpha)+d/e*pow(i,f)*sin(beta)+g));
}
return 0;
}

-----------------------------------------------------

output:

Enter a,b,c,d,e,f,alpha and beta values:                                                                                

10 5 3 8 4 3                                                                                                            

60 90                                                                                                                   

Enter range of x: 5                                                                                                     

x       |       fx                                                                                                      

------------------------                                                                                                

0       |       0.00000                                                                                                 

1       |       1.17837                                                                                                 

2       |       9.42698                                                                                                 

3       |       31.81605                                                                                                

4       |       75.41581

----------------------------

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