‘Higher-order functions’ is a fancy term for functions that take other functions as arguments or that return functions. Very powerful!

Every function is created with the word “def”, which stands for define, followed by the name for the function, a set of parentheses, and a colon. The actual code is then written on the lines below.

Trigonometric functions are often used in embedded systems. Motor drivecontrol applications such as the Park Transform, Clarke Transform, andPWMgeneration use trigonometric functions extensively.