C Program for Linear Interpolation

/*Linear Interpolation*/




#include<stdio.h>

#include<conio.h>

void main()

{

float x1,x0,x,f0,f1,f;

clrscr();

puts("-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-");

puts("Program for Linear Interpolation");

puts("-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*"-);

printf("Enter the values of x0 and f(x0)\n");

scanf("%f %f",&x0,&f0);

puts("----------------------------------------");

printf("Enter the values of x1 and f(x1)");

scanf("%f %f",&x1,&f1);

puts("----------------------------------------");

printf("Enter the values of x ");

scanf("%f",&x);

puts("----------------------------------------");

f=f0+((f1-f0)*(x-x0)/(x1-x0));

printf("%f",f);

puts("\n--------------------------------------");

getch();

}

Output:-

-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-

Program for Linear Interpolation

-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-

Enter the values of x0 and f(x0)

1 0

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

Enter the values of x1 and f(x1)

6 1.791759

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

Enter the values of x

2

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

0.358352

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