Matrix Multiplication
Friday, September 6, 2019
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When I teach matrix multiplication I discovery that pupils tin rate the axe top away a fleck lost inward their calculations. I constitute a fantastic novel method on this blog.
Let's tell nosotros accept matrix A together with matrix B. We desire to calculate AB. Write downwardly the 2 matrices side-by-side. Then move matrix Influenza A virus subtype H5N1 down. Now write your answer inward the infinite at the bottom right. I intend the side past times side measuring is self-explanatory from the film below, merely read the master copy blog post for a amount explanation.
I honey this method - it's together with thence unproblematic to retrieve together with at in 1 trial most impossible to top away lost when multiplying matrices.
And - on the dependent area of matrices - this made me chuckle:
Let's tell nosotros accept matrix A together with matrix B. We desire to calculate AB. Write downwardly the 2 matrices side-by-side. Then move matrix Influenza A virus subtype H5N1 down. Now write your answer inward the infinite at the bottom right. I intend the side past times side measuring is self-explanatory from the film below, merely read the master copy blog post for a amount explanation.
And - on the dependent area of matrices - this made me chuckle: