Matrix Multiplication - How to Multiply Matrices and Avoid ERRORS!
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- เผยแพร่เมื่อ 20 ก.ย. 2024
- How to multiply matrixes. Learn more math at TCMathAcademy.....
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I'd first like an explanation of WHY matrices are used. How is the solution used?? Arithmetic, algebra, geometry, trigonometry, calculus, statistics... are all fairly self-explanatory. Before you need to know how to multiply matrices, you need to know why you would do so.
Great lesson i just remember how to solve the matrix !!!
Am I right in thinking that multiplication of matrices is non-commutative. ie, [matrix a][matrix b] yields a different result from [matrix b][matrix a]? Or is there some rule that determines the order they should be placed in?
My memory of matrices from schoolwork is almost completely gone. Only the memory of slogging through seemingly endless series of rough-book calculations remains.
The rule that the number of columns in Matrix A must equal the number of rows in Matrix B, will create situations where the reverse is not true. Also because you have rows x columns unless all values(elements) in a matrix are the same it is impossible to get same result.
For those asking matrices are useful in budgeting, agriculture, city layout planning and spreadsheets.
The question is why would you want to do this?
You could have just simply said the number of columns in the first matrix must equal the number of rows in the second matrix. Too long winded in your explanation.