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Old 09-10-2019, 05:45 AM   #1
TicToc
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Problem visualizing equations

Hi all.

I am asking for help about visualization of mathematical stuff.
Am the owner of a Kobo Aura H20 Edition 2. Frequently, I read ebooks that contain a lot of mathematics, usually equations, some times diagrams.
Kobo visualizes equations as images but all the times (that is, it is not a problem encountered on a specific book) the image embedded in the text is too small, unreadable. Even tapping on the image for zooming it does not solve: from the one hand, quite often the reader confuses the tapping with the command of shifting pages. For example I cannot tap on images that are close to one side of the page. Furthermore, I do not wish to open the image in a separate window: I wish to have a visual of the equation AND of the text surrounding it.
In summary, I am in search of some tip for making automatically equations to look larger inside the ebook.

Thanks for any help

Fabio
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Old 09-10-2019, 01:20 PM   #2
ps67
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Welcome to the forum.

I don't know if there is a way. If those who created the files used mathml instead of images the equations would look much better (I Just made the experiment, epub3 with mathml converted in kepub). I also noticed the problem with a sample book a lot time ago downloaded for curiosity, but luckily I don't need to read equations.

I have tried to visualize a file with a single equation rendered as an image that I created myself (for which the test is not very significant) with Koreader and Plato and the image, even if it is grainy is bigger. It sucks but it reads. You could try one of them.

https://www.mobileread.com/forums/sh...d.php?t=314220

I hope that someone else will have a better solution for You.

edit: Of course Koreader or Plato will not be able to open the books You bought from Kobo because of DRM issues but there is Apprentice Half for that. In this forum it is not allowed to say more.

Last edited by ps67; 09-13-2019 at 04:39 PM. Reason: Of course... - URL for Koreader and Plato
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Old 09-13-2019, 03:12 AM   #3
TicToc
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Hi.
Thanks for the informations.
I can add another piece: by downloading the Kobo app on tablets and smartphones, the equations display perfectly. It is ironic that the only place where I cannot read ebooks is precisely the ebook reader.
Mah....

Fabio
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Old 09-13-2019, 04:01 AM   #4
davidfor
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Are these books purchased from Kobo? If so, can you post the link to an example. I'd be interested to look at the preview and see if I can see what is going on.
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