# Is a vector a matrix

## Calculate matrix times vector

You can learn how to multiply a matrix by a vector here. These are the topics:

- A
**Explanation**how to multiply matrix times vector. **Examples**for vector with matrix.**Tasks / exercises**to practice the topic yourself.- A
**Video**for calculating with matrices. - A
**Question and answer area**to this area.

Note: No further knowledge is required for this article.

**Matrix times vector explanation**

Multiplying a matrix by a vector is actually relatively simple:

**Note:**

The multiplication of a matrix with a vector is done by the multiplication "row by column". The number of coordinates in the result corresponds to the number of rows in the matrix.

**example 1**:

We have a matrix with two rows and three columns. This is multiplied by a vector with x, y and z. In principle, the row of the matrix is multiplied by the column. You can see the detailed calculation and the result here:

Display:**Matrix times vector example 2**

If this is not enough, here is a more extensive example.

**Example 2: 3x3 matrix times vector**

In this example we have a 3x3 matrix, i.e. a matrix with 3 rows and 3 columns. This is multiplied again by a vector. Here, too, we go through the calculation piece by piece with row by column and calculate this at the end.

### Multiply video matrix

### Examples and explanations

We don't have an extra video on how to compute matrix times vector. However, we have a video that generally deals with the multiplication of matrices:

- Matrix multiplication
- Matrix times matrix
- Example is pre-calculated.

Tip: do the math again yourself. That way everything stays in your memory better.

Next video »

### Questions with answers matrix times vector

In this section we look at typical matrix by vector questions with answers.

**Q: When is this topic covered?**

A: Calculating with matrices and also matrix times vector is dealt with in the upper level, mostly from grade 11. Calculating with matrices is also part of many courses.

**Q: What topics should I look at next?**

A: We are currently working on these topics and will link them here after publication:

- Difference in position vector and direction vector
- Amount / length of a vector
- Calculating with vectors
- Add vectors
- Subtract vectors
- Midpoint of a route
- Vector product / cross product
- Late product
- Distance point to line
- Distance between parallel straight lines

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