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2.2.8 Variables
Results from CoCoA calculations can be stored in variables. Variables, like CoCoA functions, must begin with a capital letter or an error will result.

Example 
  A := 3;
  2 * A;
6
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  b := 7;
ERROR: parse error in line 12 of device stdin
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7
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  B := 7;
  A^2 + B;
16
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