It’s not super intuitively easy
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I’m trying to rotate a cube RN and it’s not working
Visualizing 3d is a mental exercise not a visual exercise unless you do it with your eyes open
Rotating it is fairly easy it’s just making the picture clear lol
The cube goes WEEE
Oh god maybe I can’t visualise 3D
Just do lines instead of shapes!
It doesn’t move right
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Pretend it does
Your brain isn’t autocad or whatever
It warps like a visualisationof a rotation of a 4D cube when I try to spin it in 3D
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imo it’s way easier when I’m not trying to do it tbhtbhtbhtbhtb
Right now I’m imaging zug standing on the spinning cube
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Yeah I’ve stopped focusing on it and it’s fine now
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I can rotate a cow in my mind
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like rn it’s difficult, but when I wanted to visualize an intuitive idea for lagrange multipliers, i could do so (after a lot of time though because figuring out what it was took a while)
i don’t remember what lagrange multipliers are 
i should probably start relearning multi at some point
you have some function f, and a constraint function g. you want to find values of x,y,z, etc such that f is maximized/minimized, and g = some constant.
to find it, you set the gradient of f equal to lambda times the gradient of g, where lambda is any constant
then you solve for solutions and test if they work