I can't understand why an integral of a fraction doesn't resize the integral symbol by itself.
$\text{SAR}=\int_{campione}\dfrac{\bf{\sigma}(r)|\bf{E}(r)|^2}{\bf{\rho}(r)}dr$
I saw this Big integral sign but with bigints
nothing changes (and yes, I loaded the package and I erased all those files that work like a cache). I wouldn't write an instruction to make this resize
Best Answer
You simply need
if it really is an inline, not displayed, math. If not, a solution may be as follows:
Using
\bf
in LaTeX is not recommended. You have, e.g.,\mathbf{}
.