This is a follow up question from Sans-Serif font in text
I am using this \usepackage{helvet}
for my entire writing in Overleaf.
However, for a matrix symbol M, I want to use Sans-serif font
which I also want a small paragraph using Sans-serif font.
So, I put: `renewcommand{\familydefault}{\sfdefault}` But it changes the whole entire typing to Sans-serif, which I do not want.
So, I uses:
`{\sffamily Text in sans-serif...}` ... normal text
will get Sans-serif font in text.
How about in the equation?
text {\sffamily A}$\boldsymbol{v}$ $=$ $\lambda$$\boldsymbol{v}$.
\begin{equation}
{\sffamily A}\boldsymbol{v}=\lambda \boldsymbol{v}.
\end{equation}
A
in sans serif font which is only for matric, vector.\mathsf{A}
. Other options would include\mathbb{A}
. The latter requires\usepackage{amssymb}