# How to insert an equation with matrix

**Electromagnetic tensor**.

Do the following (how to add an equation in your document, see Working with Microsoft Equation):

** 1. ** In the **Equation Editor** enter * F* and then select

**Subscript**in the

**Subscript and superscript templates**group on the

**Equation**toolbar:

** 2. ** Choose and in the **Greek characters (lowercase)** group on the **Equation** toolbar:

** 3. ** Enter * =* and then choose

**Parentheses, or round brackets**in the

**Fence templates**group on the

**Equation**toolbar:

** 4. ** Choose **4x4 matrix** in the **Matrix templates** group on the **Equation** toolbar:

To add a matrix more than 4x4, do the following:

- choose
**Variable-size matrix or table**in the**Matrix templates**group on the**Equation**toolbar: - in the
**Matrix**dialog box enter count of columns or/and rows and other parameters what your want:

** 5. ** Enter in some positions **zero**, for other positions use **Subscript** and **Full-size vertical fraction**: