SECOND

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

IMCOS equation

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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IMCOS("αž…αŸ†αž“αž½αž“αž€αž»αŸ†αž•αŸ’αž›αž·αž…")

Complex_number is a complex number whose cosine is to be calculated.

note

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.


warning

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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=IMCOS("4-3i")
returns -6.58066304055116-7.58155274274654i.

=IMCOS(2)
returns -0.416146836547142 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_imcosh.xhp#imcosh_head not found]., [text/scalc/01/func_imsin.xhp#imsin_head not found]., [text/scalc/01/func_imsinh.xhp#imsinh_head not found].

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