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 vivekgupta 25Oct2012 16:11

Basics of C programming

I wrote code for sinx

But it is showing output as INF

Why INF?? what's wrong with code ....
plz help
Code:

```#include<stdio.h> #include<math.h> int main() { float x,t=0,sum; int i,n,sig=1; printf("Input X,N"); scanf("%f %d",&x,&n); x*=(3.14/180); sum=x; for(i=0;i<n;i++) { sig*=-1; t=(sig*x*x)/(2*i*(2*i+1)); sum+=t; } printf("SIN(X) = %f\n",sum); return 0; }```
:snore:

 sirama 25Oct2012 16:35

Re: Basics of C programming

In you code you are using the for loop that starts from zero.
Code:

`for(i=0;i<n;i++)`
So when the loop runs for the first time, you get infinite in the variable t and you sum become infinite.

Code:

`t=(sig*x*x)/(2*i*(2*i+1));z`
Whatever you add to Infinite, the result will be infinite

Start your loop from 1 (ie for(i=1;i<n;i++)

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