Get rotated, idiot.
this post was submitted on 19 Jun 2024
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I just downvoted your comment.
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As this is your first time receiving my downvote, I will provide reasons (listed below) to help you avoid making these mistakes again. Note that this will not be the case with future downvotes.
- Writing variables next to each other to form words. "Y o u" is not an English word. If you want the English word "You" in LaTeX math mode, write \text{You}.
- Your "rotation matrix" has determinant of -1, meaning it is not a rotation matrix. Propaganda promoting improper rotations will not be tolerated on mander.xyz.
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I didn't actually downvoted your comment but apprently someone did and now I look like an asshole 😢.
Honestly with a writeup like this I wouldn't be mad about it even if you did, this is excellent. I wish all my downvoted comments got this kind of attention.
It’s an old copypasta from reddit haha. I modified it to add the Fediverse stuff and my complaints with LaTex and improper rotation.
Downvoted because it didn’t end with /s.
\cdot all the way (except e.g. cross-product for vectors, I'm not an anarchist)
As someone that grades undergraduates, I'm happy that they not use the letter "x" to imply multiplication.
I need 'em both. Not everything I multiply is a number.
dot product vs cross product
I use asterisk.
In LaTeX? You really are a rebel.
(1)(3)(5)
Fight me. Also, one of these is a function
times is for cartesian product, cdot if i feel like it
\cdot for matrix multiplication and the dot product, \times for cross product and nothing (or *, if I want to write it explicitly and have no convolution in the expression) for regular multiplication.
or *, if I want to write it explicitly and have no convolution in the expression
But why
'*' is commonly used for multiplication in computer programming, so it's probably that. Also in your calculator app
This is the way
\cdotfor vectors and in some cases, scalar variables, e.g.,x \cdot y\timesfor numbers, e.g.,2 \times 8- nothing for combination and scalars, e.g.,
2xorxy
cdots is within matrices and times is used for a m \times n matrix
How about nothing at all