Calculadora%20t%C3%A1ctil:%20Es%20un%20teclado%20virtual%20que%20nos%20ayudar%C3%A1%20a%20introducir%20r%C3%A1pidamente%20n%C3%BAmero%20en%20los%20campos%20que%20lo%20necesiten%20ya%20que%20el%20uso%20normal%20de%20la%20aplicaci%C3%B3n%20se%20hace%20interactuando%20con%20la%20pantalla%20t%C3%A1ctil.