program_euler.c

#include <stdio.h>

//funcao fatorial

double fatorial(int n){

	int j;
	double f=1.0;

	for (j=1; j <= n; j++){

		f = f * j;

	}

	return f;

}

//programa para calcular numero de euler usanto a funcao fatorial

void main (){

	double e;
	int i;

	for (i=1; 1.0/fatorial(i) < 0.000001; i++){

		e = e + 1.0/fatorial(i);
	}

	printf ("Valor aproximado do Numero de Euler:%f \n", e);

	system ("PAUSE");

}