Use the Jordan-Gauss elimination, the easy way to solve the system 4×4, or even 10×10.
Form the augmented matrix , enter the matrix in MATLAB. and then use this simple code(rref(A)), where A is the augmented matrix….

Old video, but… THANK YOU! When I was learning vector/matrix algebra by hand in the 1980's, I always knew how to solve the problems but invariable made minor arithmetic errors. It's great to see a Maths instructor acknowledge this. Computers are SO much more reliable for simple repetitive tasks than humans.

I wonder if that was the first take ðŸ™‚

What about if you had a 4×4 system? or nxn system? how do you solve it?

Thanks Christine and MIT.

Use the Jordan-Gauss elimination, the easy way to solve the system 4×4, or even 10×10.

Form the augmented matrix , enter the matrix in MATLAB. and then use this simple code(rref(A)), where A is the augmented matrix….

Gaussian elimination is much easier

oh shit, f this

Regel von Sarrus geht schneller ihr Keks bei 3×3 Matrizen

for the minor matrix at min 4:00 you would better write the minor matrices themselves then calculate'em later

Old video, but… THANK YOU! When I was learning vector/matrix algebra by hand in the 1980's, I always knew how to solve the problems but invariable made minor arithmetic errors. It's great to see a Maths instructor acknowledge this. Computers are SO much more reliable for simple repetitive tasks than humans.