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WOLFRAM|DEMONSTRATIONS PROJECT

A Variable Can Be Anything

​
expression
16+s
2
2
s
5s
-
3
s
s
5
2
s
symbol
x
a
b
A
t
r
value of the symbol
2
x = 2
16+x
= 16+2
= 18
This Demonstration introduces the concept of a variable. Variables stand for unknown numerical values and are usually expressed by a letter. Use the slider to replace your variable with a specific value.
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