TAN()
Tangent of the argument
- Syntax
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- TAN (nRadiant) -> nTangent
- Arguments
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- <nRadiant> an angle size given in radiants
- Returns
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- <nTangent> the tangent of <nRadiant>
- Description
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- The function TAN() calculates the tangent of an angle whose size is given in radiants (full angle equals 2*Pi - see DTOR() for angle size given in degress). A common geometric interpretation of the TAN() function is the counterkathede-ankathede-ratio of a right-angled triangle, or, tan(x) = sin(x)/cos(x).
Examples
? tan (0.0) --> 0.0
? tan (1.0) --> 1.5574...
Tests
tan (0.0) == 0.0
tan (PI()/4) == 1
tan (PI()) == 0.0
- Status
- Ready
- Compliance
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- TAN() is compatible with CT3's TAN().
- Platforms
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- All
- Files
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- Source is trig.c, library is libct.
- See Also