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#1 |
Junior Member
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Join Date: Oct 2023
Device: pocketbook inkpad lite
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inkpad lite - can't handle the math?
i got an inkpad lite not too long ago and i have to say i'm disappointed. i have a few books in epub format with a lot of mathematical symbols and the lite is amazingly slow doing whatever it does when i turn a page. it can take a minute or more for the page to display. the epub appears to be fine - it has no trouble opening and turning pages in ereader software on my pc and android.
any thoughts on what i might need to do to speed things up? i tried koreader but it can't even display the proper symbols. |
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#2 |
Connoisseur
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Join Date: Sep 2023
Location: Toulouse, France
Device: Vivlio Touch HD Plus
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#3 |
Junior Member
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Device: pocketbook inkpad lite
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i'm hesitant to upload copyrighted material. The book I'm currently trying to get to display correctly is Leonard Susskind 'Special Relativity and Classical Field Theory'
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#4 | |
Connoisseur
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Join Date: Sep 2023
Location: Toulouse, France
Device: Vivlio Touch HD Plus
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Quote:
From my POV, math rendering is broken (or it is the EPUB producers that don't do their job correctly, I've not investigated so far) whatever the e-reader model or brand is. Even simple things as exponents aren't rendered as expected! See the attached screenshot from "The Rust Programming Language". And changing the font doesn't help; At least with default fonts. Nonsense... Last edited by orontee; 10-29-2023 at 03:31 AM. |
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#5 |
0000000000101010
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Join Date: Mar 2023
Location: An island off the coast of Ireland
Device: PB632 [HD3]
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Likely the epub conversion has been done badly.
I can view all the math symbols in this epub correctly: https://www.gutenberg.org/ebooks/71655.epub3.images EDIT... actually I think the symbols/equations in this book are all images... I've also tried adding some fonts that directly support mathematic symbols to my Pockebook, but it still fails. ![]() Last edited by neil_swann80; 10-29-2023 at 04:54 AM. |
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#6 |
Connoisseur
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Join Date: Sep 2023
Location: Toulouse, France
Device: Vivlio Touch HD Plus
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Well, the HTML embedded in the EPUB uses "<sup>" elements which is ok for such simple math formulas, but the CSS stylesheet redefines how such elements must be rendered, resetting their vertical alignment!
If one removes the two silly references to sub and sup in the EPUB stylesheet, then the rendering is as expected both on my computer and my ereader. |
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