Difference between revisions of "Denominator Command"
From GeoGebra Manual
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:Returns the denominator of a function. | :Returns the denominator of a function. | ||
:{{example|1=<div><code><nowiki>Denominator[5 / (x^2 + 2)]</nowiki></code> yields ''f(x)=(x<sup>2</sup> + 2)''.</div>}} | :{{example|1=<div><code><nowiki>Denominator[5 / (x^2 + 2)]</nowiki></code> yields ''f(x)=(x<sup>2</sup> + 2)''.</div>}} | ||
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| + | {{notes|1= | ||
| + | :*For a fast numerical method (so long as the numbers aren't too big) you can use these in the ''Input Bar'': <code>CommonDenominator[a,a]</code> for denominator and <code>round(a*CommonDenominator[a,a])</code> for Numerator | ||
| + | :*See also [[Numerator Command]].}} | ||
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==CAS Syntax== | ==CAS Syntax== | ||
;Denominator[ <Expression> ] | ;Denominator[ <Expression> ] | ||
:Returns the denominator of a rational number or expression. | :Returns the denominator of a rational number or expression. | ||
:{{example|1=<div><code><nowiki>Denominator[2 / 3 + 1 / 15]</nowiki></code> yields ''15''.</div>}} | :{{example|1=<div><code><nowiki>Denominator[2 / 3 + 1 / 15]</nowiki></code> yields ''15''.</div>}} | ||
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Revision as of 12:24, 30 November 2014
- Denominator[ <Function> ]
- Returns the denominator of a function.
- Example:
Denominator[5 / (x^2 + 2)]yields f(x)=(x2 + 2).
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 Numerator 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
- Denominator[ <Expression> ]
- Returns the denominator of a rational number or expression.
- Example:
Denominator[2 / 3 + 1 / 15]yields 15.
