[Libreoffice-bugs] [Bug 142503] New: error in functions sin

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=142503

            Bug ID: 142503
           Summary: error in functions sin
           Product: LibreOffice
           Version: 6.0.7.3 release
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: diederik.huysmans at skynet.be

Description:
for an angel of 180° Calc gives sin=1,22464679914735E-16        sin must be 0
for an angel of 360° Calc gives sin=-2,44929359829471E-16       sin must be 0
Formula used for sin   sin(radialen(angel))



Steps to Reproduce:
Formula used for sin   sin(radialen(angel))

2.
3.

Actual Results:
for an angel of 180° Calc gives sin=1,22464679914735E-16
for an angel of 360° Calc gives sin=-2,44929359829471E-16       

Expected Results:
In both cases te result must be 0
error persist in further multiples of 180°


Reproducible: Always


User Profile Reset: No


OpenGL enabled: Yes

Additional Info:
Versie: 6.0.7.3
Build ID: 1:6.0.7-0ubuntu0.18.04.10
CPU-threads: 12; Besturingssysteem: Linux 5.4; UI-render: standaard; VCL: gtk3; 
Locale: nl-BE (nl_BE.UTF-8); Calc: group

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