For learning characters, I've written a short summary of my own method. If you find Skritter annoying, which I do, you'll be pleased to find a stroke order manual there.

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Note that it uses classical texts. You could easily modify it for your own purposes, if you can find a suitable mathematical text or lecture transcription.

For Japanese, Breaking Into Japanese Literature would be a good starting place. Recordings of the stuff in the book are all freely available. Technical language in Japanese and Chinese is pretty uniform. I would learn one language and stick with it instead of tackling both. I know several languages, and I prefer Chinese, but for reading math Japanese is probably a better choice, because it retains a great many traditional characters. As a rule of thumb, it's pretty easy to go from traditional to simplified, not so easy to go from reading simplified to traditional.

For learning characters, I've written a short summary of my own method:. If you find Skritter annoying, which I do, you'll be pleased to find a stroke order manual there.

blog link

Note that it uses classical texts. You could easily modify it for your own purposes, if you can find a suitable mathematical text or lecture transcription.

For Japanese, Breaking Into Japanese Literature would be a good starting place. Recordings of the stuff in the book are all freely available. Technical language in Japanese and Chinese is pretty uniform. I would learn one language and stick with it instead of tackling both. I know several languages, and I prefer Chinese, but for reading math Japanese is probably a better choice, because it retains a great many traditional characters. As a rule of thumb, it's pretty easy to go from traditional to simplified, not so easy to go from reading simplified to traditional.

For learning characters, I've written a short summary of my own method:

blog link

Note that it uses classical texts. You could easily modify it for your own purposes, if you can find a suitable mathematical text or lecture transcription.

For Japanese, Breaking Into Japanese Literature would be a good starting place. Recordings of the stuff in the book are all freely available.