Convert all math formulas to images

[groob]

Hello,
I have many technical ebooks (epub, mobi) containing many math formulas.
In calibre for mac I can mostly read these formula correctly but when I transfer this same file (same format, already converted) to my kindle paperwhite (1st gen) many formula are not correctly rendered.

I'm quite sure this is a limitation of my kindle version, so nothing to be done there, I guess.

I was wondering if does it exist a converting procedure or a plugin that could convert all the math formulas into images in order to be correctly visualized in the reader.

Thanks in advance

[kovidgoyal]

No, I'm afrid not. if your math formulae are represented as svg then converting to mobi will auto-rasterize them, but if they use something else like mathml then no.

[groob]

Thanks,
in your opinion this incorrect rendering is due to a conversion problem/limitation or a limitation of my reader?
In the last case, are there other readers known to be more "math friendly"?

[groob]

After verification, I can confirm (at least in one case) that the problem is coming from the use of mathml.
What is the technical limitation to first render this formula and then grab the generated visual output?

[kovidgoyal]

rendering mathml is far from trivial. it's a very large spec with very few open source standalone implementations outside of browser engines, and even there it is being removed from browser engines. So you are left with JS based solutions like mathjax, which is what for instance the calibre viewer uses. IIRC calibre's PDF output has suport for using MathJax when converting to PDF, so you might be better off converting to PDF (sized for your device screen).

[JSWolf]

You can use MathML Cloud to convert the MathML equations to SVG.

https://mathmlcloud.org

[poppe]

A couple of years later and I'm in the same situation. wanting to read a epub with mathml formulas.

@kovidgoyal

Originally Posted by kovidgoyal

IIRC calibre's PDF output has suport for using MathJax when converting to PDF, so you might be better off converting to PDF (sized for your device screen).

I can read them in calibre without problem. When I try to convert the epub to pdf the pdf is without the mathjax rendering. Is it possible to get a pdf with the correct rendering, if so how do I do it?

Thanks for a great program by the way!

[JSWolf]

Originally Posted by poppe

A couple of years later and I'm in the same situation. wanting to read a epub with mathml formulas.

@kovidgoyal


I can read them in calibre without problem. When I try to convert the epub to pdf the pdf is without the mathjax rendering. Is it possible to get a pdf with the correct rendering, if so how do I do it?

Thanks for a great program by the way!

Convert the math formulas to SVG. There are websites out there that will do this. Google is your friend.

[kovidgoyal]

if its not working for you then follow the instructions here: https://www.mobileread.com/forums/sh...d.php?t=186697

[poppe]

Originally Posted by JSWolf

Convert the math formulas to SVG. There are websites out there that will do this. Google is your friend.

I have googled a couple of hours now and found nothing that is supposed to convert an epub with mathml to svg. I tried two different conversion tools that convert epub to svg but non worked. I think I'm not so friendly with google, but perhaps you are a bigger friend and could point me with a link to where I could convert . To understand it correctly, you mean I should convert the whole book to svg or just the mathml? If just the mathml what would the steps be without manually editing the whole book?

Originally Posted by kovidgoyal

if its not working for you then follow the instructions here: https://www.mobileread.com/forums/sh...d.php?t=186697

Thanks a lot I will do that. And thanks again for the excellent software

[JSWolf]

There used to be sites that supported creating equations and supported mathML and could output SVG. No idea where they've gone.

[DNSB]

Originally Posted by JSWolf

There used to be sites that supported creating equations and supported mathML and could output SVG. No idea where they've gone.

I'm wondering if the poster is trying to convert the epub not the MathML equations? I found several sites that would convert MathML to svg but none that would take an epub with embedded MathML and convert that to svg. Sadly, the MathML Cloud site by Benetech is no longer supported.