IMSECH


Returns the hyperbolic secant of a complex number.

Syntax

IMSECH( z )
where z is a complex number

Semantics

IMSECH( z ) is equivalent to IMDIV(1, IMCOSH( z )).
To get better accuracy it is not implemented that way. With the notation IMSECH("a+bj")="c+dj" the used formulas are

real part

imaginary part









 
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