Python - Calculate Pitch Diameter for Gears

print ("This program will calculate the Pitch Diameter of gears in metric units.")

import math

###  Formula for calculating the Pitch Diameter of gears:
#  PitchDiameter =  (NumberOfTeeth * NormalDiametralPitch)/(math.cos(HelixAngle) )
###########################################

# Enter the NumberOfTeeth, NormalDiametralPitch, HelixAngle
#  Convert HelixAngle from degrees to radians
def SolveForPitchDiameter():
    print ("Solving for the Pitch Diameter of gears in metric units.")

    # Enter the NumberOfTeeth 
    NumberOfTeeth = float(input("Enter the number of teeth: ") )
    # Enter the NormalDiametralPitch (number of teeth per cm)
    NormalDiametralPitch = float(input("Enter the Normal Diametral Pitch (number of teeth per cm): ") )
    # Enter the HelixAngle
    HelixAngle = float(input("Enter the Helix Angle: ") )

    # Calculate the top of the fraction
    TopOfFraction = (NumberOfTeeth * NormalDiametralPitch)
    print("The fraction is: ", TopOfFraction)
    # Convert degrees to radians
    HelixAngleInRadians = (math.radians(HelixAngle) )
    print("The helix angle in radians is: ", HelixAngleInRadians)
    # Calculate the cosine
    CosineOfHelixAngle = math.cos(HelixAngleInRadians)
    print("The cosine of the helix angle is: ", CosineOfHelixAngle)
    # Calculate the pitch diameter
    PitchDiameter = (TopOfFraction/CosineOfHelixAngle)
    print ("The pitch diameter is: ", PitchDiameter, " cm.")
        
ContinueCalculations = "y"

# Check to see if the user wants to continue to calculate the pitch diameter
while (ContinueCalculations=="y"):
    SolveForPitchDiameter()
    ContinueCalculations = input("Would like to do another calculation for the pitch diameter of gears? (y/n): ")

print("==================================")
print ("Thank you to www.fxsolver.com for assistance with this formula.")