public double Mult(double n1, double n2) { return(Calcular.Multiplicar(n1, n2)); }
public double Div(double n1, double n2) { return(Calcular.Dividir(n1, n2)); }
public double Sub(double n1, double n2) { return(Calcular.Subtrair(n1, n2)); }
public double Soma(double n1, double n2) { return(Calcular.Somar(n1, n2)); }