interesse

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

int main(void){

	double principal = 10000.0; //capitale
	double rate = .05; //interesse annuale
	unsigned int year = 1;

	for(year=1;year<=10;year++) {
		double amount = principal * pow(1.0 + rate, year);

		printf("%4u%21.2f\n", year, amount);

	}
}