Return tangent of a number

Contract
Return type	wob
No input parameters.

Water Contract
<method number.integer.tan/>

See also: cos, acos, cosh, sin, asin, sinh, atan, tanh, atan2, radians_to_degrees, degrees_to_radians, integer

Returns the tangent of a _subject of type integer .

1.<tan />

1.5574077246549023