I&#x27;m so glad this exists going into my next term involving a lot of maths that I just don&#x27;t fundamentally understand; sure I can remember a set of rules after boring revision of sequences of instructions but I hate that.<p>I asked what a &quot;dot product&quot; _meant_ once and was just told how it could be used to determine these other values. I later learnt what it actually was by reading some renderer library code.<p>I had a similar &quot;aha&quot; moment when I read how you described sine&#x2F;cosine&#x2F;etc as percentage values in relation to positions around the circle. I hate how I was taught maths since secondary school (when I was so confused at trig&#x2F;pythag lessons but learnt the concepts very quickly when I was coding around with positions and angles in a game engine mod to get a position x units in front of a character instead of doing homework)<p>I really think this site will help me in the coming year, thank you!