Convert string to double: How to use atof: sines calculator : String Convert « String « C / ANSI-C

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Convert string to double: How to use atof: sines calculator





#include <stdio.h>

#include <stdlib.h>

#include <math.h>



int main ()

{

  double n, m;

  double pi=3.1415926535;

  char   str[256];



  printf ( "Enter degrees: " );

  gets ( str );

  n = atof ( str );

  m = sin ( n * pi / 180 );

  printf ( " sine of %f degrees = %f \n" , n, m );

  

  return 0;

}

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