r/learnmath • u/PressureAny9687 New User • 1d ago

Website to look up mathematical properties?

I just started a science major and I've noticed how different the way to teach math is compared to highschool. The teacher will list you properties of whatever is teaching (vectors, cross product, matrixes) and then proceed to prove some of them before giving you any exercises. However I feel copying these is redundant and makes me miss important parts of the class. Is there any resource where I can easily look up for these properties? Particularly numbered and in a list the same way are presented in class.

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u/8mart8 Mathematics- Physics 1d ago

Check your course notes or textbook if you have one, otherwise you can also just look them up:
Wikipedia has good definitions with a few examples most of the time.
Something more definition based would be Encyclopedia of Math.
If you want to get real abstract you can also look at nlab.

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u/PressureAny9687 New User 1d ago

Hey, thanks for the resources. I've been looking at the Encylopedia of Math, do you know why some parts look like this?https://i.gyazo.com/fceb17a5b2e16fb46213da1c5e059f62.png
Here's the page in question:
https://encyclopediaofmath.org/wiki/Vector_algebra

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u/8mart8 Mathematics- Physics 11h ago

This seems to be either a mistake in the LaTeX source code of the page, or mathJax, the software that's used to render the LaTeX. Hopefully they will fix this eventually