No, it is not.
yes it is
just make the matrices upper triangular by making the values below the digonal zero,and then find how many minors can be calcuted.......
how to multiply two sparse matrices
A product is a operation involving two or more inputs (numbers, matrices, etc). A "number that is half of 12" comprises only a single number and so there cannot be any product.
no
No, it is not.
yes it is
just make the matrices upper triangular by making the values below the digonal zero,and then find how many minors can be calcuted.......
how to multiply two sparse matrices
The statement that the rank of product of two matrices cannot exceed the rank of either factor is a true statement. The rank of a matrix is the largest number of linearly independent rows or columns. The column rank is equal to the row rank in every matrix.
A product is a operation involving two or more inputs (numbers, matrices, etc). A "number that is half of 12" comprises only a single number and so there cannot be any product.
If the product of two matrices is the identity matrix then one matrix is the inverse or reciprocal of the other matrix. EXAMPLE A =(4 1) A-1 = (0.3 -0.1) then AA-1 = (1 0) .....(2 3)......... (-0.2 0.4)................... (1 1) The dots simply maintain the spacing and serve no other purpose.
You can indicate the multiplication with a multiplication sign. If your matrices are "A" and "B", the product is: A x B In other words, you are indicating the product, but not actually carrying out any multiplication. Anybody who understands about matrices should know what this refers to.
answer
Let me correct you: two-dimensional arrays are used in programming to represent matrices. (Matrices are objects of mathematics, arrays are objects of programming.)
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