1.7 Python Basics-numeric types

One, int type (arbitrary precision integer)

An integral type (int) is a data type that represents an integer. Unlike other computer languages with precision restrictions, Python's integer digits can be any length of bits (limited to computer memory only)

A numeric string is an integral type constant.

The Python interpreter automatically creates an int type object instance.

A numeric string is usually interpreted as a decimal (base 10) number.

Integral type constant

Number system	Prefix	Basic Digital	Example
Decimal (base 10)		0~9	0,1,2,7,999,-12,+12
Hexadecimal (base 16)	0x or 0X	0~9 and A~f (or a~f)	0x0,0x1,0x7,0x3e7
Octal (base 8)	0o or 0O	0~7	0o0,0o1,0o2,0o7,0o1747
Binary (base 2)	0b or 0 B	0,1	0b0,0b1,0b10,0b111,0b1100011

Type float (limited precision floating point number)

Floating-point types (float) are data types that represent real numbers.

Type of decimal (high precision floating point number)

Know

Iv. Types of fraction (fractions)

Know

V. Type of complex (plural)

Know

1.7 Python Basics-numeric types