11. Basic Numbers¶

There are two types of numeric data: int and float.
Why are there different types?
- There are different kinds of data: counters are integers and PI is not.
- Operations with integers are much faster.
- Floating-point numbers are approximations: their precision has a limit.

	1	print(type(3))
	2	print(type(3.14))
	3	print(type(3.0))
	4	x = -32
	5	print(type(x))
	6	x = 32.0
	7	print(type(x))
	8	print(type(int(x)))

line that just executed

next line to execute

Step 1 of 8

Python Tutor by Philip Guo

Customize visualization (NEW!)

Print output (drag lower right corner to resize)

Frames

Objects

Activity: CodeLens 11.1 (cl_l40_11a_en)

11.1. Operator Table¶

**Operator Table**¶
Operator	Operation
*	Multiplication
/	Division
**	Exponentiation
abs()	Absolute Value
%	Modulus
//	Integer Division
-	Subtraction
+	Addition

11.2. Numeric Operators¶

	1	print(3 + 4)
	2	print(3.0 + 4.0)
	3	print(3.0 * 4.0)
	4	print(4 ** 3)
	5	print(4.0 ** 3)
	6	print(abs(5))
	7	print(abs(-5))

line that just executed

next line to execute

Step 1 of 7

Python Tutor by Philip Guo

Customize visualization (NEW!)

Print output (drag lower right corner to resize)

Frames

Objects

Activity: CodeLens 11.2.1 (cl_l40_11b_en)

You have attempted 1 of 2 activities on this page