Difference between revisions of "Root Command"
From GeoGebra Manual
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:Yields all roots of the polynomial as intersection points of the function graph and the ''x''‐axis. | :Yields all roots of the polynomial as intersection points of the function graph and the ''x''‐axis. | ||
:{{example| 1=<div><code><nowiki>Root[x^3 - 3 * x^2 - 4 * x + 12]</nowiki></code> yields ''{x = 3, x = 2, x = -2}''.</div>}} | :{{example| 1=<div><code><nowiki>Root[x^3 - 3 * x^2 - 4 * x + 12]</nowiki></code> yields ''{x = 3, x = 2, x = -2}''.</div>}} | ||
| − | {{note| 1=<div> | + | {{note| 1=<div>In the [[CAS View]], this command is only a special variant of [[Solve Command]].</div>}} |
Revision as of 22:56, 21 January 2013
- Root[ <Polynomial> ]
- Yields all roots of the polynomial as intersection points of the function graph and the x‐axis.
- Root[ <Function>, <Number a> ]
- Yields one root of the function using the initial value a for a numerical iterative method.
- Root[ <Function>, <Number a>, <Number b> ]
- Yields one root of the function in the interval [a, b] using a numerical iterative method.
CAS Syntax
- Root[ <Polynomial> ]
- Yields all roots of the polynomial as intersection points of the function graph and the x‐axis.
- Example:
Root[x^3 - 3 * x^2 - 4 * x + 12]yields {x = 3, x = 2, x = -2}.
Note:
In the CAS View, this command is only a special variant of Solve Command.
