Diagon alley Memes

When your math professor asks you to enter Diagon Alley, but you're a linear algebra nerd who can't help but see a 45° rotation matrix! That 2×2 matrix with √2/2 values is literally the mathematical spell to rotate objects by 45 degrees in a coordinate system. While wizards wave wands, mathematicians wave matrices. The perfect intersection of Hogwarts and homework problems that nobody asked for!