Funciones para ingenieria economica

index.js

function factor_pf(capital,interest, years){
	return capital / (Math.pow(1+interest, years))
}
function factor_pa(capital,interest, years){
	var one_i = Math.pow(1+interest, years);
	return capital * ( ( one_i - 1 ) / (interest * one_i) )
}