Inline Math equation editing

harrythecrayest · 05-31-2017, 01:32 PM

Hello every, I am a IT staff of a tutorial centre. I wish to know are the any ways to type math equation and symbols without editing html. Thank you very much.

KevinH · 05-31-2017, 01:40 PM

Most equation editors (see LibreOffice, MSOffice,etc), allow someone to save an equation as mathml mark-up which can be cut and pasted as text into an xhtml page. I use the equation editor in LibreOffice. It works nicely.

You can also use Latex to generate equations and save them as mathml.

dickloraine · 05-31-2017, 08:41 PM

Most epub readers won't support mathml (at least for epub2). That said, if the goal is to let people not familiar with html write texts with math, maybe simple markdown with latex-math support would work. Take a look at pandoc. Pandocs markdown allows math equations and can be converted to html, epub, latex and pdf.

Toxaris · 06-01-2017, 02:08 AM

As mentioned before, support for MathML is scarce. I usually convert the equation to SVG. That way it scales quite well. You can create the equation directly on the codecogs site. If the equations are in Word, you can use my add-in to convert them to SVG or PNG.

KevinH · 06-01-2017, 10:15 AM

Toxaris,
How do you convert MS math to an SVG or PNG? Can it be done on the fly? I have looked at a number of projects that try to convert mathml to svg but these are typically MathJax based javascript routines that are not easy to integrate into Sigil.

Thanks,

Kevin

Toxaris · 06-01-2017, 12:35 PM

Quote:

Originally Posted by KevinH

Toxaris,
How do you convert MS math to an SVG or PNG? Can it be done on the fly? I have looked at a number of projects that try to convert mathml to svg but these are typically MathJax based javascript routines that are not easy to integrate into Sigil.

Thanks,

Kevin

I can either extract it from a Word document in the OMath format and convert that to MathML and subsequent to SVG. The SVG can be converted to PNG.
The MathML to SVG code is based on SVGMath I believe it was, which is written in Python. I have converted it to C# for easier integration. However, the current version of my add-in uses a compiled version of SVGMath, but that is going away in the new version. Then I will use my library.

KevinH · 06-01-2017, 02:11 PM

I'll have to dig up svgmath and see what its capabilities are.

Thanks!

Toxaris · 06-01-2017, 03:07 PM

Quote:

Originally Posted by KevinH

I'll have to dig up svgmath and see what its capabilities are.

Thanks!

No problem, if you want to know how to convert from OMath to MathML, let me know.

KevinH · 06-01-2017, 03:45 PM

I was more thinking of a Preview mode fast inline mathml to svg conversion. Using MathJax can be quite slow (even with MathJax stripped down and condensed to one file as we use it). Since Preview gets constantly updated and reloaded with every change, speed to convert mathml to svg is important when previewing an epub with mathml.

So if a C-version (or python) of the routines in svgmath can be used, it would help prevent lag when using Sigil in Preview to see mathml.

Toxaris · 06-01-2017, 04:32 PM

The python program is not particularly fast, but perhaps faster than MathJax.

05-31-2017, 01:32 PM	#1
harrythecrayest Junior Member Posts: 1 Karma: 10 Join Date: May 2017 Device: mobile	Inline Math equation editing Hello every, I am a IT staff of a tutorial centre. I wish to know are the any ways to type math equation and symbols without editing html. Thank you very much.

05-31-2017, 01:40 PM	#2
KevinH Sigil Developer Posts: 7,637 Karma: 5433388 Join Date: Nov 2009 Device: many	Most equation editors (see LibreOffice, MSOffice,etc), allow someone to save an equation as mathml mark-up which can be cut and pasted as text into an xhtml page. I use the equation editor in LibreOffice. It works nicely. You can also use Latex to generate equations and save them as mathml. Last edited by KevinH; 05-31-2017 at 08:56 PM.

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05-31-2017, 08:41 PM	#3
dickloraine Guru Posts: 631 Karma: 7544080 Join Date: Apr 2013 Location: Berlin Device: PRS 350, Kobo Aura	Most epub readers won't support mathml (at least for epub2). That said, if the goal is to let people not familiar with html write texts with math, maybe simple markdown with latex-math support would work. Take a look at pandoc. Pandocs markdown allows math equations and can be converted to html, epub, latex and pdf.

06-01-2017, 02:08 AM	#4
Toxaris Wizard Posts: 4,520 Karma: 121692313 Join Date: Oct 2009 Location: Heemskerk, NL Device: PRS-T1, Kobo Touch, Kobo Aura	As mentioned before, support for MathML is scarce. I usually convert the equation to SVG. That way it scales quite well. You can create the equation directly on the codecogs site. If the equations are in Word, you can use my add-in to convert them to SVG or PNG.

06-01-2017, 10:15 AM	#5
KevinH Sigil Developer Posts: 7,637 Karma: 5433388 Join Date: Nov 2009 Device: many	Toxaris, How do you convert MS math to an SVG or PNG? Can it be done on the fly? I have looked at a number of projects that try to convert mathml to svg but these are typically MathJax based javascript routines that are not easy to integrate into Sigil. Thanks, Kevin

06-01-2017, 02:11 PM	#7
KevinH Sigil Developer Posts: 7,637 Karma: 5433388 Join Date: Nov 2009 Device: many	I'll have to dig up svgmath and see what its capabilities are. Thanks!

06-01-2017, 03:45 PM	#9
KevinH Sigil Developer Posts: 7,637 Karma: 5433388 Join Date: Nov 2009 Device: many	I was more thinking of a Preview mode fast inline mathml to svg conversion. Using MathJax can be quite slow (even with MathJax stripped down and condensed to one file as we use it). Since Preview gets constantly updated and reloaded with every change, speed to convert mathml to svg is important when previewing an epub with mathml. So if a C-version (or python) of the routines in svgmath can be used, it would help prevent lag when using Sigil in Preview to see mathml.

06-01-2017, 04:32 PM	#10
Toxaris Wizard Posts: 4,520 Karma: 121692313 Join Date: Oct 2009 Location: Heemskerk, NL Device: PRS-T1, Kobo Touch, Kobo Aura	The python program is not particularly fast, but perhaps faster than MathJax.