Difference between revisions of "Numerator Command"
From GeoGebra Manual
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:Returns the numerator of the function. | :Returns the numerator of the function. |
Revision as of 14:35, 6 August 2015
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- Numerator[ <Function> ]
- Returns the numerator of the function.
- Example:
Numerator[(3x² + 1) / (2x - 1)]
yields f(x) = 3x² + 1.
Notes:
- For a fast numerical method (so long as the numbers aren't too big) you can use these in the Input Bar:
CommonDenominator[a,a]
for denominator andround(a*CommonDenominator[a,a])
for Numerator - See also Denominator Command.
- For a fast numerical method (so long as the numbers aren't too big) you can use these in the Input Bar:
CAS Syntax
- Numerator[ <Expression> ]
- Returns the numerator of a rational number or expression.
- Examples:
Numerator[2/3 + 1/15]
yields 11.- If variables a, b and c haven't been previously defined in GeoGebra, then
Numerator[a/b]
yields a andNumerator[a + b/c]
yields a c + b