Return hyperbolic cosine of a number

Contract
Return type	wob
No input parameters.

Water Contract
<method number.integer.cosh/>

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

Returns the hyperbolic cosine of a _subject of type integer .

1.<cosh />

1.5430806348152437