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.

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>{{command|cas=true|function}}
+;Numerator( <Function> )
+:Returns the numerator of the function.
+:{{example|1=<code><nowiki>Numerator((3x² + 1) / (2x - 1))</nowiki></code> 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 [[ContinuedFraction Command|continued fraction]] is returned.
+{{note|1=See also [[Denominator Command]] and [[FractionText Command]].}}
-{{Manual Page|version=4.0}}
-{{command|function}}
+==CAS Syntax==
-;Numerator[ <Function> ]
+;Numerator( <Expression> )
-:{{description}}
+:Returns the numerator of a rational number or expression.
+:{{examples|1=<div>
+:*<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(Simplify(a + b/c))</code> yields ''a c + b''</div>}}