**Contents**show

## How do you sort a matrix in a row major order?

**Sort the matrix row-wise and column-wise**

- Sort each row of the matrix.
- Get transpose of the matrix.
- Again sort each row of the matrix.
- Again get transpose of the matrix.

## Can you rearrange matrix rows?

**Switching Rows**

**You can switch the rows of a matrix to get a new matrix**. In the example shown above, we move Row 1 to Row 2 , Row 2 to Row 3 , and Row 3 to Row 1 . (The reason for doing this is to get a 1 in the top left corner.)

## How do you sort a matrix?

Approach: Create a temp[] array of size n^2. Starting with the first row one by **one copy the** elements of the given matrix into temp[]. Sort temp[]. Now one by one copy the elements of temp[] back to the given matrix.

## How do you change a row in a matrix?

**How to Perform Elementary Row Operations**

- Interchange two rows. Suppose we want to interchange the second and third rows of A, a 3 x 2 matrix. …
- Multiply a row by a number. Suppose we want to multiply each element in the second row of Matrix A by 7. …
- Multiply a row and add it to another row. Assume A is a 2 x 2 matrix.

## Can you rearrange matrices?

Matrix multiplication is not commutative

In other words, in matrix multiplication, the order in which two matrices are multiplied matters!

## Can you reorder the columns of a matrix?

Click the Column Tools tab, then select Sort By Column. Note you should still have the Duration column selected, so choose PCSort2 from this list. **Wait for Power BI to update**, then your matrix should automatically reorder the columns for you.

## How would you store the following matrix in memory if row-major order is used?

If row-major order is used, how is the following matrix stored in memory? Explanation: **It starts with the first element and continues in the same row until the end of row is reached and then proceeds with the next row**. C follows row-major order. 7.