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This post categorized under Vector and posted on March 11th, 2018.

Since we view vectors as column matrices the matrix-vector product is simply a special case of the matrix-matrix product (i.e. a product between two matrices). Just like for the matrix-vector product Multiplying a Vector by a Matrix To multiply a row vector by a column vector the row vector must have as many columns as the column vector has rows. Let us define the multiplication between a matrix A and a vector x in which the number of columns in A equals the number of rows in x .My vector is a column vector return by a function. Im hoping to avoid an extra step just to transpose it.

How could you convert a single row or column to a range of matrix in Excel Copy and paste them one by one will waste a lot of time in this article I will talk about some quick tricks for you to solve this job. With Kutools for Excels Transform Range feature you can quickly convert a range ofI have a matrix with 5 columns and 4 rows. I also have a vector with 3 columns. I want to subtract the values in the vector from columns 34 and 5 respectively at each row of the matrix.This is a non-loop version. It is only suitable if M (your matrix) is not very large ie. n and m are small. X is your row function ind findRow(MX) tmp M - repmat(Xsize(M1)1) ind find(tmp1) end If M is too large it might be faster to iterate the rows of M and compare every row with your vector.

The rank of a matrix is the dimension of its column and row space i.e. the maximum number of linearly independent column and row vectors of the matrix. It is a measure of the non-degenerateness of the linear equation system the matrix represents.

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