April 2008
Intermediate to advanced
566 pages
21h 55m
English
TAN()
TAN(number)This function returns the tangent of an angle, where
number is expressed in radians. It’s the
reverse of ATAN2(). Here is an example:
SELECT ATAN2(1), TAN(0.785398); +----------+---------------+ | ATAN2(1) | TAN(0.785398) | +----------+---------------+ | 0.785398 | 1.000000 | +----------+---------------+
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