Incorrect handling of super/subscript in LaTex

Question

Hello,I am trying to display an equation which has a superscript and a subscript using the code below:

\left( \frac{\sum {M}^{*}_{pb}}{\sum {M}^{*}_{pc}} \right)_x

When inserted into this code editor (https://editor.codecogs.com/) the correct output is displayed. However, in the attached zip, the output word file shows incorrect handling of the equation. Is there a solution for this? Thanks. Attachment: LatexEquation_c1351038.zip

Sneha Biju · Accepted Answer

Natalie,
as promised earlier, we have included the fix for the reported bug with “LaTeX contains NArray with subsuperscript not preserved
properly while calling AppendMath API” in our latest weekly NuGet release (v25.1.39).

Root cause of the issue:
If an equation contains NArray with equation after subsuperscript
accepts in Microsoft Word. In DocIO, NArray with equation after
subsuperscript not accepted.

Please use the below link to download our latest weekly NuGet:
Syncfusion.DocIO.Wpf

The status of this bug task can be tracked
through the Feedback link.

Note: We
will include this fix in our 2024 Volume 1 SP release, which will be available
in the beginning of May 2024.

Sneha Biju · Answer

Hi Natalie,

We have reproduced the reported issue of "LaTeX equation not being preserved properly when appended to a Word document" on our end. We will
validate the issue and provide you with more details by mid of this week.

Regards,
Sneha.

Suriya Balamurugan · Answer

Natalie, we have confirmed
that the reported issue with “LaTeX contains NArray with subsuperscript not
preserved properly while calling AppendMath API” is a defect and we have
logged a defect report. We will include the fix for this defect in our weekly
NuGet release, which is estimated to be available on three weeks. We will let
you know once the fix is included in the weekly release.

The status of this bug can be tracked through the below link:
https://www.syncfusion.com/feedback/51950/latex-contains-narray-with-subsuperscript-not-preserved-properly-while-calling

Disclaimer: Inclusion of this
solution in the weekly release may change due to other factors including but
not limited to QA checks and works reprioritization.

Natalie Westphal · Answer

This fix seems to have partially fixed the issue, but now when the equation is displayed in PDF, the parentheses overlap some of the symbols. This does not occur in the word document. Please see Output attached.

Attachment: Word_and_PDF_55ba9be2.zip

Anto Nihil Sahaya Raj · Answer

Natalie, we
have reproduced the reported issue with “Parentheses overlap with text
when converting a Word document to PDF” on our end. We will validate
the reported problem and provide you with more details within two business
days.

Anto Nihil Sahaya Raj · Answer

Natalie, we have confirmed that the reported issue “Delimiter
with Subscript-Superscript equation is not preserved properly in Word to PDF
conversion” is a defect and we have
logged a defect report. We will include the fix for this defect in our Weekly
NuGet release which is estimated to be available at the beginning of
May 2024.

The status of this bug can be tracked through the below link:
Delimiter
with Subscript-Superscript equation is not preserved properly in Word to PDF
conversion in WPF | Feedback Portal (syncfusion.com)

Disclaimer: “Inclusion of this solution in the weekly release may change due to
other factors including but not limited to QA checks and works reprioritization.”

Sneha Biju · Answer

Natalie, as
promised earlier, we have included the fix for the reported bug with “Delimiter
with Subscript-Superscript equation is not preserved properly in Word to PDF
conversion” in our latest weekly NuGet release (v25.1.42).

Root cause of the issue:
In the Word document input, there is a right subscript-superscript
within a delimiter in an equation. While layouting the subscript-superscript,
we took into account the superscript's width to determine the position of the
end delimiter. However, in this instance, we need to consider the subscript's
width to determine the position of the end delimiter. As a result, we are
encountering the reported preservation issue.

Please use the below link to download our latest weekly NuGet:
Syncfusion.DocToPDFConverter.Wpf

The status of this bug task can be tracked
through the below link.
Delimiter
with Subscript-Superscript equation is not preserved properly in Word to PDF
conversion in WPF | Feedback Portal (syncfusion.com)

Note: We
will include this fix in our 2024 Volume 1 SP release, which will be available
in the middle of this week.