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This module provides an introduction to the use of variables, and the required syntax of the identifiers used to represent variables.
Table of contents
Preface
This module is one in a collection of modules on Python designed for
teaching
ITSE 1359 Introduction to Scripting Languages: Python at Austin Community
College in Austin, TX.
This module provides an introduction to the use of variables, and the
required syntax of the identifiers used to represent variables.
Viewing tip
I recommend that you open another copy of this module in a separate
browser window and use the following links to easily find and view theFigures while you are reading about them.
(Note to blind and visually
impaired students: most of the Figures in this module are presented in plaintext format and should be accessible using an audio screen reader or a
braille display.)
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Figure 1 . Create and use some variables.
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Figure 2 . Assigning the same value to several variables.
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Figure 3 . The truth about pigeonholes.
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Figure 4 . Assign a different value to the variable named b.
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Figure 5 . Python takes care of routine type issues automatically.
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Figure 6 . The magic continuation variable.
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Figure 7 . An illegal variable name.
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Figure 8 . A serious programming problem.
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Figure 9 . Visualizer showing result of a spelling error.
What is a variable?
As the name implies, a variable is something whose value changes over time.
A pigeonhole in memory
As a practical matter, a variable is a pigeonhole in memory, which has a
nickname, where you can store values.
Questions & Answers
Explain the following terms .
(1) Abiotic factors in an ecosystem
Abiotic factors are non living components of ecosystem.These include physical and chemical elements like temperature,light,water,soil,air quality and oxygen etc
Qasim
passive process of transport of low-molecular weight material according to its concentration gradient
AI-Robot
what is production?
Catherine
how did the oxygen help a human being
how did the nutrition help the plants
Biology is a branch of Natural science which deals/About living Organism.
evolutionary history and relationship of an organism or group of organisms
AI-Robot
cell is the smallest unit of the humanity biologically
Abraham
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Source:
OpenStax, Itse 1359 introduction to scripting languages: python. OpenStax CNX. Jan 22, 2016 Download for free at https://legacy.cnx.org/content/col11713/1.32
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