CSCH

Purpose:

Returns the hyperbolic cosecant of any expression.

Syntax:

CSCH(val)

val

-

A scalar, series or table.

Returns:

A scalar, series, or table.

Example:

csch(-10..0.01..10);gridhv;griddot;sety(-10, 10)

 

 

image\cschpic01.gif

 

displays the hyperbolic cosecant from 10 to 10.

Example:

csch(pi)

 

returns 0.086589538.

Example:

csch(-2..0.1..2)

 

returns a 41 point series.

Remarks:

The hyperbolic cosecant is defined as:

 

image\csch01.gif

 

for all complex z.

 

image\csch02.gif

 

SETDEGREE and SETRADIAN have no effect on this function because it always operates in radians.

 

At 0, this function returns ∞. Near 0, it returns a very large real number.

See Also:

ACSCH

ACSC

CSC

GCSCH

SINH

TRIGONOMETRIC FUNCTIONS