[Libreoffice-bugs] [Bug 144066] Tangent function is returning a number to the order of 10^16 for PI/2

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=144066

Jean-Baptiste Faure <jbfaure at libreoffice.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |NOTABUG
                 CC|                            |jbfaure at libreoffice.org
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Jean-Baptiste Faure <jbfaure at libreoffice.org> ---
Hmmm, tan() = sin()/cos()
sin(Pi/2) = 1
cos(Pi/2) = 0
then tan(Pi/2) = +infinity
so the value provided by Calc is a relatively correct approximation.

What is your source for your expected value?
https://en.wikipedia.org/wiki/Trigonometric_functions#Simple_algebraic_values

Closing as NotABug.

Best regards. JBF

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