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C-Tutorial
Introduction
Variables in maths
Variables in programming
Source Code
Value
Value after printf
Is Positive?
Variable and Output
Revision on the topic variables and output.
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Variables in maths
What is a variable in maths?
A name for a constant number, like e for 2.718...
A placeholder for a single value.
A placeholder, which either stands for a single value or a range of values.
A name for a location, where you can store values to.