[Libreoffice-bugs] [Bug 118496] New: Equations in PowerPoint are badly imported

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=118496

            Bug ID: 118496
           Summary: Equations in PowerPoint are badly imported
           Product: LibreOffice
           Version: 6.2.0.0.alpha0+ Master
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Impress
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: rb.henschel at t-online.de

Created attachment 143262
  --> https://bugs.documentfoundation.org/attachment.cgi?id=143262&action=edit
Equation in PowerPoint

Open attached document. You will see an equation which is shown as image and as
formula. [The error that it is shown twice is tracked in bug 117658.] Move the
image away and double-click the formula. You should get the Math editor. Look
at the command window. On the left side you see a lot of brackets stacked.
Depending on your installed fonts you might see "missing glyph" characters in
the formula. They belong to the characters U+1d465 (x) and U+1d45b (n). Now
replace these characters with the corresponding normal characters x and n. The
brackets will be rendered as they should when you are finished.

Problems are:
The command window cannot properly handle this unicode range.
The glyphs of this range have an italic appearance by itself and they are put
to italic by LibreOffice in addition. That looks not nice.
Many fonts incl. OpenSymbol, Liberation family, and Noto family do not have
glyphs in that Unicode range.

The equation looks better in presentation mode. But here too the setting
"italic" on the variable is ugly. If you use menu Format > Font and disable
italic for Category Variable, you can see, that it looks better.

Expected: The formula renders nearly the same as shown in the image.

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