Chromebook coding

Hey all,

I have a chromebook. May not be the best but it works for me. I am a student. I am taking a class that the only way I can really get my projects done is if I use microsoft notepad, save to a flash drive, then upload it into MatLab (the program I have to use) once I am at school. The teacher has specified weird guidelines, and I just have to play ball.

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Sorry for the ramble, question is, what programs are available on chromebook that function like notepad? I just need to copy and paste code. I've searched....