Python Programming For Beginners: A Must Read Introduction to Python Programming by Robert Richards

Author:Robert Richards [Richards, Robert]
Language: eng
Format: epub, pdf
Publisher: Robert Richards
Published: 2014-12-10T23:00:00+00:00

Python-Numbers

Understanding Python Numbers is a part of basic Python programming. Numerical values are stored in number data type.

Assigning Value and Del Statement - Being immutable data, when any number’s value is changed, a new allocated object is the result. These objects are created when a value is assigned to them.

For instance –

var1 = 1

var2 = 10

And so on.

The ‘del’ statement can be used for deleting a number reference. Its syntax is –

del var1[,var2[,var3[,var4[,var5[….,varN]]]]]]

Number Types - Four types of numbers are supported by Python –

Signed Integers or ‘int’ – These are negative or positive whole numbers, often referred to as ‘ints’ or ‘integers’, without decimal points.

Long Integers or ‘long’ – These are unlimited size integers and are written just like an integer except ‘L’ in lower or upper case follow them. This was dropped in Python 3.0. Instead, ‘int’ is used.

Floating Point Real Value or ‘float’ – Floats are representatives of real numbers. They can be e or E, i.e. scientific notation, and are written with the fractional and integer parts being divided with a decimal point.

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