Numerator Command

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Numerator[ <Function> ]
Returns the numerator of the function.
Example:
Numerator[(3x² + 1) / (2x - 1)] yields f(x) = 3x² + 1.

CAS Syntax

Numerator[ <Expression> ]
Returns the numerator of a rational number or expression.
Example:
Numerator[2/3 + 1/15] yields 11.
Note:
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