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3D + E
D = 2 x 3
-1 2 3
4 0 5
E = 3 x 2
2 1
8 -1
6 5
D has 3 columns, and E has 3 rows ?
D = 2 x 3
-1 2 3
4 0 5
E = 3 x 2
2 1
8 -1
6 5
D has 3 columns, and E has 3 rows ?
Last edited:
Perhaps less skimming and more 'doing' is in order!rocomath said:I'm not actually doing the problem, just skimming through the section.
LOL, I know I should be doing the problems :( But, I did the examples and looked over the rules. I plan on doing a a good review after finals :)cristo said:Perhaps less skimming and more 'doing' is in order!
A matrix is undefined when it does not have a defined value. This can happen for several reasons, such as having a zero determinant, being non-square, or having a division by zero.
You can tell if a matrix is undefined by checking its properties, such as its dimensions and determinant. If the matrix is non-square or has a determinant of zero, it is considered undefined.
No, you cannot perform operations on an undefined matrix. This is because it does not have a defined value, so any calculations would be meaningless.
If a matrix is singular, it means that it is undefined. This is because a singular matrix has a determinant of zero, which means it does not have a unique solution.
To avoid getting an undefined matrix, you should ensure that the matrix has a non-zero determinant and is square. You should also avoid dividing by zero when performing operations on a matrix.