Difference between revisions of "Simplify Command"
From GeoGebra Manual
(command syntax: changed [ ] into ( )) |
(add examples with Assume. Links to other "rewriting" commands) |
||
| Line 5: | Line 5: | ||
;Simplify( <Text> ) | ;Simplify( <Text> ) | ||
:Attempts to tidy up text expressions by removing repeated negatives etc. | :Attempts to tidy up text expressions by removing repeated negatives etc. | ||
| − | :{{example| 1=For ''a'' = ''b'' = ''c'' = -1 <code><nowiki>Simplify("f(x) = " + a + "x² + " + b + "x + " + c)</nowiki></code> yields the text ''f(x) = -x<sup>2</sup> - x - 1''. | + | :{{example| 1=For ''a'' = ''b'' = ''c'' = -1 <code><nowiki>Simplify("f(x) = " + a + "x² + " + b + "x + " + c)</nowiki></code> yields the text ''f(x) = -x<sup>2</sup> - x - 1''. |
| − | :{{note| <div>The [[FormulaText Command]] normally produces better results and is simpler.</div> | + | :{{note| <div>The [[FormulaText Command]] normally produces better results and is simpler.</div> |
{{note|<div>This command needs to load the Computer Algebra System, so can be slow on some computers. Try using the [[Polynomial Command]] instead.</div>}} | {{note|<div>This command needs to load the Computer Algebra System, so can be slow on some computers. Try using the [[Polynomial Command]] instead.</div>}} | ||
== CAS Syntax == | == CAS Syntax == | ||
;Simplify( <Function> ):Simplifies the terms of the given function, if possible. Undefined variables can be included in the terms. | ;Simplify( <Function> ):Simplifies the terms of the given function, if possible. Undefined variables can be included in the terms. | ||
| − | :{{ | + | |
| − | :{{Note|1=See also [[Factor Command]].}} | + | :{{examples|<div> |
| + | :*<code><nowiki>Simplify(3 * x + 4 * x + a * x)</nowiki></code> yields <code> ''xa'' + ''7x''</code>. | ||
| + | :*<code><nowiki>Assume(x<2,Simplify(sqrt(x-2sqrt(x-1))))</nowiki></code> yields <code>-sqrt(abs(x - 1)) + 1</code> | ||
| + | :*<code><nowiki>Assume(x>2,Simplify(sqrt(x-2sqrt(x-1))))</nowiki></code> yields <code>sqrt(abs(x - 1)) + 1</code></div>}} | ||
| + | :{{Note|1=See also [[Factor Command]], [[Assume Command]], [[PartialFractions Command]], [[Expand Command]], [[Polynomial Command]].}} | ||
Revision as of 08:43, 15 May 2019
- Simplify( <Function> )
- Simplifies the terms of the given function, if possible.
- Example:
Simplify(x + x + x)yields the function f(x) = 3x.
- Simplify( <Text> )
- Attempts to tidy up text expressions by removing repeated negatives etc.
- {{example| 1=For a = b = c = -1
Simplify("f(x) = " + a + "x² + " + b + "x + " + c)yields the text f(x) = -x2 - x - 1. - {{note| The FormulaText Command normally produces better results and is simpler.
Note:
This command needs to load the Computer Algebra System, so can be slow on some computers. Try using the Polynomial Command instead.
CAS Syntax
- Simplify( <Function> )
- Simplifies the terms of the given function, if possible. Undefined variables can be included in the terms.
- Examples:
Simplify(3 * x + 4 * x + a * x)yieldsxa + 7x.Assume(x<2,Simplify(sqrt(x-2sqrt(x-1))))yields-sqrt(abs(x - 1)) + 1Assume(x>2,Simplify(sqrt(x-2sqrt(x-1))))yieldssqrt(abs(x - 1)) + 1
- Note: See also Factor Command, Assume Command, PartialFractions Command, Expand Command, Polynomial Command.
