Captioning equations can be quite tricky, especially when they can include some unusual characters.

Where it is clear and easy to depict, **always try to use the equation**.

- E.g. ‘One times n plus one minus x’ is ‘x n + 1 – x’ in captions.

# Exceptions

- ‘Squared’ –
**Write as a word**. E.g. 4^{2}– x^{2}= 16x^{2 }is ‘4x squared – x squared = 16x squared’ in captions. - Chemical equations –
**Use the subscript/superscript in normal case.**E.g. ‘H_{2}O’ is ‘H2O’ in captions.

**More questions?**