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November 5, 2021 20:28
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# Módulo para funciones matemáticas en los complejos | |
# https://docs.python.org/3/library/cmath.html | |
import cmath | |
# Ingresar complejos en la forma 1+2j | |
a = complex(input("Ingrese a: ")) | |
b = complex(input("Ingrese b: ")) | |
c = complex(input("Ingrese c: ")) | |
# En este caso no hay precondiciones con respecto a los valores a,b,c | |
x1 = (-b+cmath.sqrt(b**2-4*a*c))/(2*a) | |
x2 = (-b-cmath.sqrt(b**2-4*a*c))/(2*a) | |
print('Primera raiz ', x1) | |
print('Segunda raiz ', x2) | |
# Comprobar las postcondiciones | |
(r1,phi1) = cmath.polar(a*x1**2 + b*x1 + c) | |
assert r1 < 0.000000001, "La primera raiz no cumple" | |
(r2,phi2) = cmath.polar(a*x2**2 + b*x2 + c) | |
assert r2 < 0.000000001, "La segunda raiz no cumple" |
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