https://bugs.documentfoundation.org/show_bug.cgi?id=117893
Bug ID: 117893
Summary: besselj gives error for negative order
Product: LibreOffice
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Calc
Assignee: libreoffice-bugs@lists.freedesktop.org
Reporter: k...@drdoppler.com
=besselj(3.8,2) gives .409. Good
=besselj(3.8,-2) gives err502. Bad. It should give the same answer
=besselj(3.8,3) gives .418. Good
=besselj(3.8,-3) gives err502. Bad. It should give -.418
In general
besselj(x,-even order)=besselj(x,+even order) (behaves like cos(-x)=cos(x))
besselj(x,-odd order)=-besselj(x,+odd order) (behaves like sin(-x)=-sin(x))
Kent
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