Calculate the mathematical constant Value of Pi using Monte Carlo method - C Data Type

C examples for Data Type:float

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Description

Calculate the mathematical constant Value of Pi using Monte Carlo method

Demo Code

#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main()//ww w .  j  ava 2  s . com
{
     int p, intCircle = 0, intSquare, intToss = 3000, intRM;
     float  pi, x, fltY, fltR;
     intRM = RAND_MAX;


     intSquare = intToss;
     for (int i = 0; i < intToss; i++) {
         p = rand();
         x = ((float)p)/intRM;
         p = rand();
         fltY = ((float)p)/intRM;
         fltR = sqrt((x * x) + (fltY * fltY));
         if (fltR <= 1)
           intCircle = intCircle + 1;
     }
     pi = 4 * ((float) intCircle) / intSquare ;
     printf("\nThe value of pi is : %f\n", pi);
     return(0);
}

Result


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