Integers and floats are two different kinds of numerical data. An integer (more commonly called an int) is a number without a decimal point. A float is a floating-point number, which means it is a number that has a decimal place. Floats are used when you need to approximate real numbers.
a = 0 # Create a variable "a" of the datatype "int" b = 0.0 # Create a variable "b" of the datatype "float" def setup(): size(640, 360) stroke(255) frameRate(30) def draw(): global a, b background(0) a = a + 1 b = b + 0.2 line(a, 0, a, height / 2) line(b, height / 2, b, height) if a > width: a = 0 if b > width: b = 0