updating oE arctan
Trigonometry
arctan
<built-in> function arctan(object tangent)
returns an angle with given tangent.
Parameters:
- tangent : an object, each atom of which will be converted, no matter how deeply nested.
Returns:
An object, of the same shape as tangent. For each atom in flatten(tangent), the angle with smallest magnitude that has this atom as tangent is computed.
Comments:
All atoms in the returned value lie between -PI/2 and PI/2, exclusive.
This function may be applied to an atom or to all elements of a sequence (of sequence (...)).
arctan is faster than arcsin or arccos.
Example 1:
s = arctan({1,2,3}) -- s is {0.785398, 1.10715, 1.24905}
See Also:
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