In this chapter, you learned about:

• What functions are

• Function names

• Function parameters

• Function return values

• Details of type casting with float(), int(), and str()

• Basic calculation functions abs(), max(), min(), pow(), and round()

• len()

• input()

• Details of the print() function

• String formatting using format()

• What modules are

• The math module functions exp(), log(), log10(), and sqrt()

• The random module functions random(), randint(), and seed()

• The pcinput module functions getInteger(), getFloat(), getString(), and getLetter()