Difference between revisions of "SurdText Command"
From GeoGebra Manual
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;SurdText[ <Point> ] | ;SurdText[ <Point> ] | ||
:Creates text representation of the point, where coordinates are in the form <math>\frac{a+\sqrt{b}}{c}</math>. | :Creates text representation of the point, where coordinates are in the form <math>\frac{a+\sqrt{b}}{c}</math>. | ||
+ | {{Note|1=Because this command works with a rounded decimal number as the input, sometimes the result will be unexpected. For example SurdText[163/ln(163)].}} | ||
+ | {{Note|1=If a suitable answer can't be found, the number will be returned. For example SurdText[1.23456789012345].}} |
Revision as of 22:12, 15 July 2012
This page is about a feature that is supported only in GeoGebra 4.2. |
- SurdText[ <Number> ]
- Creates text representation of the number in the form \frac{a+\sqrt{b}}{c} or as a multiple of \pi
- Example:
SurdText[2.414213562373095]
creates \sqrt{2} + 1
- Example:
SurdText[4.71238898038469]
creates \frac{3 \pi}{2}
- SurdText[ <Number>, <List> ]
- Creates text representation of the number as multiples of the constants in the list. If the list is empty it uses a list of common constants.
- Example:
SurdText[3.718281828459045, {exp(1)}]
creates e + 1
- Example:
SurdText[5.382332347441762, {sqrt(2), sqrt(3), sqrt(5)}]
creates \sqrt{2} + \sqrt{3} + \sqrt{5}
- Example:
SurdText[1.693147180559945, {}]
creates 1 + \ln{2}
- SurdText[ <Point> ]
- Creates text representation of the point, where coordinates are in the form \frac{a+\sqrt{b}}{c}.
Note: Because this command works with a rounded decimal number as the input, sometimes the result will be unexpected. For example SurdText[163/ln(163)].
Note: If a suitable answer can't be found, the number will be returned. For example SurdText[1.23456789012345].