Matrix Magic

AX = B and X = A^(-1) * B

This is a famous matrix formula, and here is one interesting fact about it! If:

Matrix A has 2 variables-w & z-and Matrix B has the differences of w & z, then Matrix X = [1 -1]; Note: w-z=-(z-w)

This will always work out! It works with any number!


Matrices with numbers 8, 5, & -3

It works with negative numbers, too!

Matrices with negative numbers

And even non-integers work out! It's amazing!! Irrational numbers work!!

Matrices with irrational numbers

It doesn't matter what numbers you choose! You'll always get the same result!

[x y] always comes out as[1 -1]!

Imaginary numbers aren't allowed in matrices.

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© Derek Cumberbatch