Hi, I think that TPhysicsTeXConverter could be improved by adding the "\text{ }" tag to the unit symbols. The thing is that currently, units of measurement are displayed as variables or mathematical parameters (i.e., formatted as TeX mathematical expressions), but usually should be displayed as text labels.

Now it's like this:

```
{10}\frac{kg}{m^3}
```

I propose this:

```
{10}\frac{ \text{kg} }{ \text{m}^3 }
```

Or maybe add an option to enable the "textual" TeX style in the converter..?

Screenshot: