Difference between revisions of "Numerator Command"

Latest revision as of 09:39, 9 October 2017

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

Numerator( <Number> ): For a rational number returns its numerator. It uses a numerical method, which limits this command to numbers with small denominator. For irrational input the numerator of its continued fraction is returned.

Note: See also Denominator Command and FractionText Command.

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 and Numerator(Simplify(a + b/c)) yields a c + b

@@ Line 1: / Line 1: @@
-<noinclude>{{Manual Page|version=5.0}}</noinclude>
+<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|cas=true|function}}
-{{command|cas=true|function}}
+;Numerator( <Function> )
-;Numerator[ <Function> ]
 :Returns the numerator of the function.
-:{{example|1=<div><code><nowiki>Numerator[(3x² + 1) / (2x - 1)]</nowiki></code> yields ''f(x) = 3x² + 1''.</div>}}
+:{{example|1=<code><nowiki>Numerator((3x² + 1) / (2x - 1))</nowiki></code> yields ''f(x) = 3x² + 1''.}}
-{{notes|1=
+;Numerator( <Number> )
-:*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
+:For a rational number returns its numerator. It uses a numerical method, which limits this command to numbers with small denominator. For irrational input the numerator of its [[ContinuedFraction Command|continued fraction]] is returned.
-:*See also [[Denominator Command]].}}
+{{note|1=See also [[Denominator Command]] and [[FractionText Command]].}}
 ==CAS Syntax==
-;Numerator[ <Expression> ]
+;Numerator( <Expression> )
 :Returns the numerator of a rational number or expression.
 :{{examples|1=<div>
-:*<code><nowiki>Numerator[2/3 + 1/15]</nowiki></code> yields ''11''.
+:*<code><nowiki>Numerator(2/3 + 1/15)</nowiki></code> yields ''11''.
-:*If variables ''a, b'' and ''c'' haven't been previously defined in GeoGebra, then <code>Numerator[a/b]</code> yields ''a''  and <code>Numerator[a + b/c]</code> yields ''a c + b''</div>}}
+:*If variables ''a, b'' and ''c'' haven't been previously defined in GeoGebra, then <code>Numerator(a/b)</code> yields ''a''  and <code>Numerator(Simplify(a + b/c))</code> yields ''a c + b''</div>}}

Difference between revisions of "Numerator Command"

Latest revision as of 09:39, 9 October 2017

Numerator

Command Categories (All commands)

CAS Syntax