Python - Raiz Cuadrada

import math

def magnitude(x1,y1,x2,y2):

  raiz = math.sqrt((x2-x1)**2)+((y2-y1)**2)

  print raiz

magnitude(0,0,1.3,1.3)

raiz = math.sqrt((x2-x1)**2+(y2-y1)**2)

print (round(raiz,2))

import math

def magnitude(x1,y1,x2,y2):

  raiz = math.sqrt((x2-x1)**2+(y2-y1)**2)

  print (raiz)

magnitude(0,0,1.3,1.3)

num=int(input("Raíz cuadrada de:"))

raíz=num(1/2)

print(raíz)