In what ways are matrices used in the real world?
In: Mathematics
I would add to posters before me, tons of uses in physics, both classical (Hamiltonian, Lagrangian mechanics), relativistic and quantum.
All kinds of engineering, including electrical, robotics, structural, traffic
Sometimes in cryptography (McEliece/Niederreiter). This one is cool because it stems from a more general application to error correction (which AFAIK is also used to make internet work)
As stated above in statistics (but it get dangerous, don’t confuse with computer Multi-Arrays, which don’t use the row-column product)
They are *everywhere* in math, just way to numerous to even know all the applications. I can scarcely think of a single course that has not involved matrices in one way or another
I’ll add more if I come up with anything
Edit 1: Game theory (a branch of economics, probably more in this field)
Linguistics (Markov chains)
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