Difference between revisions of "If Command"
From GeoGebra Manual
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<div class="note">'''Note:''' | <div class="note">'''Note:''' | ||
* The ''If'' command can be used to create conditional functions. Such conditional functions may be used as arguments in any command that takes a function argument, such as [[Derivative Command|Derivative]], [[Integral Command|Integral]], and [[Intersect Command|Intersect]]. | * The ''If'' command can be used to create conditional functions. Such conditional functions may be used as arguments in any command that takes a function argument, such as [[Derivative Command|Derivative]], [[Integral Command|Integral]], and [[Intersect Command|Intersect]]. | ||
− | * Example: | + | * Example: <tt>f(x) = If[x < 3, sin(x), x^2]</tt> yields a function that equals ''sin(x)'' for ''x < 3'' and ''x<sup>2</sup>'' for ''x ≥ 3''. |
* See the section [[Boolean Variables and Operations]] for the symbols used in conditional statements. | * See the section [[Boolean Variables and Operations]] for the symbols used in conditional statements. | ||
</div> | </div> |
Revision as of 16:41, 3 November 2009
- If[Condition, Object]
- Yields a copy of the object if the condition evaluates to true, and an undefined object if it evaluates to false.
- If[Condition, Object a, Object b]
- Yields a copy of object a if the condition evaluates to true, and a copy of object b if it evaluates to false.
Note:
- The If command can be used to create conditional functions. Such conditional functions may be used as arguments in any command that takes a function argument, such as Derivative, Integral, and Intersect.
- Example: f(x) = If[x < 3, sin(x), x^2] yields a function that equals sin(x) for x < 3 and x2 for x ≥ 3.
- See the section Boolean Variables and Operations for the symbols used in conditional statements.