## LaTeX forum ⇒ Text Formatting ⇒ How to bold \tau Topic is solved

Information and discussion about LaTeX's general text formatting features (e.g. bold, italic, enumerations, ...)
sheenshahid
Posts: 20
Joined: Fri Jan 24, 2020 10:31 am

### How to bold \tau

\mathbf{\tau} changes shape of \tau when written in equation in latex for book document class. Axtually i want to bold \tau in an equation.
begin{equation}\label{eq1.3}\mathbf{\tau}=-p\textbf{I}+(1+\frac{1}{\beta})\textbf{A}_{1}\end{equation}

Bartman
Posts: 70
Joined: Fri Jan 03, 2020 2:39 pm
The example is incomplete. You can use the command \boldsymbol of amsmath to make it bold.

You may also be interested in section 8 of voss-mathmode, which describes commands for parentheses.