If you are on school and you are taking algebra like me or just want to find the missing length of one side of the triangle than this program should help you out. Pythagorean Theorem Calculator is great and extremely essay to use thanks to this little program I pass my final exam.

``````#! /usr/bin/env python

#This program was made so for public use and for educational purposess.
#THIS PART IS NOT THE CODE ITSELF THESE ARE JUST COMMANDS
#print the options you have
print "Welcome to Pythagorean Theorem Calculator.py"
print "Please keep in mind that for this program to work you need the lenght of two side of the triangle"
print " "
print " "
print "1) If you have the lenght of A and B"
print " "
print "2) If you have the lenght of C and A"
print " "
print "3) If you have the lenght of C and B"
print " "
print "4) Quit Pythagorean Theorem Calculator.py"
print " "
return input ("Choose your option: ")

from math import *

#On this one we have the lenght of A and B and we are trying to find the lenght of C
def AnB(a,b):
print a**2, "+", b**2, "=", a**2 + b**2
print sqrt(a**2 + b**2)

#On this one we have the lenght of A and C and we are trying to find the lenght of B
def CnA(c,a):
print c**2, "-", a**2, "=", c**2 - a**2
print sqrt(c**2 - a**2)

#On this one we have the lenght of B and C and we are trying to find the lenght of A
def CnB(c,b):
print c**2, "-", b**2, "=", c**2 - b**2
print sqrt(c**2 - b**2)

# NOW THE PROGRAM REALLY STARTS, AS CODE IS RUN
loop = 1
choice = 0
while loop == 1:
if choice == 1:
AnB(input("A: "),input("B: "))
elif choice == 2:
CnA(input("C: "),input("A: "))
elif choice == 3:
CnB(input("C: "),input("B: "))
elif choice == 4:
loop = 0

print "Thankyou fo using Pythagorean Theorem Calculator.py"

#END OF THE PROGRAM``````

Why did you import math near the middle of the code instead of the beginning?

Good question and I am glad you asked. Ok before I go on to explaining why I used there you must know that import math * could have been used anywhere in the code before the three functions(AnB, CnA, CnB). Now the reason why I used there, ok if you look at the code you will notice that everything before import math * statement is the menu of the program and like every program it needs to have commands to do things so I decided to put the import math * statement next to the three functions so the code is a bit neater. Most people use it on the beginning but it can also be used in other places and it become handy if you are writing a program out of the blue and don’t want to go all the way to the beginning to just type in three words. Hopefully that answer your question.

The recommended coding style for Python is:
Do the main code

The bare minimum: