Difference between revisions of "Roots Command"

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<noinclude>{{Manual Page|version=4.0}}</noinclude>
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<noinclude>{{Manual Page|version=5.0}}</noinclude>{{command|function}}
{{command|function}}
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;Roots( <Function>, <Start x-Value>, <End x-Value> )
;Roots[ <Function>, <Start x-Value>, <End x-Value> ]
 
 
:Calculates the roots for function in the given interval. The function must be continuous on that interval. Because this algorithm is numeric, it may not find all the roots in some cases.
 
:Calculates the roots for function in the given interval. The function must be continuous on that interval. Because this algorithm is numeric, it may not find all the roots in some cases.
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:{{example| 1=<div><code><nowiki>Roots(f, -2, 1)</nowiki></code> with the function <code>f(x) = 3x³ + 3x² - x</code> yields <code>A = (-1.264, 0), B = (0, 0), C = (0.264, 0)</code></div>}}
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{{Note|1=See also [[Root Command|Root]] command}}

Latest revision as of 08:47, 9 October 2017


Roots( <Function>, <Start x-Value>, <End x-Value> )
Calculates the roots for function in the given interval. The function must be continuous on that interval. Because this algorithm is numeric, it may not find all the roots in some cases.
Example:
Roots(f, -2, 1) with the function f(x) = 3x³ + 3x² - x yields A = (-1.264, 0), B = (0, 0), C = (0.264, 0)
Note: See also Root command
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