TIME

Returns the hyperbolic secant of a complex number. The hyperbolic secant of a complex number can be expressed by:

sech(a+bi)=1/cosh(a+bi)

The result is presented in the string format and has the character "i" or "j" as an imaginary unit.

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This function is part of the Open Document Format for Office Applications (OpenDocument) standard Version 1.2. (ISO/IEC 26300:2-2015)


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IMSIN("αž…αŸ†αž“αž½αž“β€‹αž€αž»αŸ†αž•αŸ’αž›αž·αž…")

Complex_number is a complex number whose hyperbolic secant needs to be calculated.

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A complex number is a string expression resulting in the form "a+bi" or "a+bj", where a and b are numbers.
If the complex number is actually a real number (b=0), then it can be either a string expression or a number value.


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The function always returns a string representing a complex number.
If the result is a complex number with one of its parts (a or b) equal to zero, that part is not displayed.


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=IMSECH("4-3i")
returns -0.0362534969158689+0.00516434460775318i.

=IMSECH(2)
returns 0.26580222883408 as a string. The imaginary part is equal to zero, so it is not displayed in the result.

Open file with example:

[text/scalc/01/func_imcsc.xhp#imcsc_head not found]., [text/scalc/01/func_imcsch.xhp#imcsch_head not found]., [text/scalc/01/func_imsec.xhp#imsec_head not found].