Main.py

#!/usr/bin/env python

import os

def main():
	try:
		#Comment the following lines if not in windows
		print("Definicion de la Matriz")


		print("Ingrese los valores: ")
		print("|x1 y1 z1 r1|")
		print("|x2 y2 z2 r2|")
		print("|x3 y3 z3 r3|")

		x1 = float(input('Ingrese el valor x1: \n>>'))
		y1 = float(input('Ingrese el valor y1: \n>>'))
		z1 = float(input('Ingrese el valor z1: \n>>'))
		r1 = float(input('Ingrese el valor r1: \n>>'))
		x2 = float(input('Ingrese el valor x2: \n>>'))
		y2 = float(input('Ingrese el valor y2: \n>>'))
		z2 = float(input('Ingrese el valor z2: \n>>'))
		r2 = float(input('Ingrese el valor r2: \n>>'))
		x3 = float(input('Ingrese el valor x3: \n>>'))
		y3 = float(input('Ingrese el valor y3: \n>>'))
		z3 = float(input('Ingrese el valor z3: \n>>'))
		r3 = float(input('Ingrese el valor r3: \n>>'))


		#Determinante del Sistema

		DetSys = ((x1*y2*z3)+(x2*y3*z1)+(x3*y1*z2))-((x3*y2*z1)+(z2*y3*x1)+(z3*y1*x2))
		#print(DetSys)
		#Determinante de X
		DetX = ((r1*y2*z3)+(r2*y3*z1)+(r3*y1*z2))-((r3*y2*z1)+(z2*y3*r1)+(z3*y1*r2))
		#print(DetX)
		#Determinante de Y
		DetY = ((x1*r2*z3)+(x2*r3*z1)+(x3*r1*z2))-((x3*r2*z1)+(z2*r3*x1)+(z3*r1*x2))
		#print(DetY)
		#Determinante de Z
		DetZ = ((x1*y2*r3)+(x2*y3*r1)+(x3*y1*r2))-((x3*y2*r1)+(r2*y3*x1)+(r3*y1*x2))
		#print(DetZ)
		#Obtencion de las incognitas

		X= DetX/DetSys
		Y= DetY/DetSys
		Z= DetZ/DetSys

		print("Los resultados son: ", "\nX=",X,"\nY=",Y,"\nZ=",Z)

		rep = str(input("Quieres repetir la operacion?(S/n): \n>>"))
		if rep.upper() == "S":
			main()
		elif rep.upper() == "N":
			exit()
		else:
			print("Not a real option, exiting!")
			exit()
	#Handle Keyboard Interrupt error
	except KeyboardInterrupt as ManualExit:
		#Change to "clear" if in linux or IOS
		exit()
	finally:
		exit()

if __name__=="__main__":
	main()