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
\dfrac
in an inline math expression is almost surely an error. If you need to use\dfrac
, switch to displaymath style; a side benefit will be that the integral symbol becomes large automatically. – Mico Jun 4 '16 at 17:57\bf{\sigma}
won't produce a bold σ. For this you should use\boldsymbol{\sigma}
or\bm{\sigma}
if you load thebm
package. – Bernard Jun 4 '16 at 18:14\bf
instead\bm
– Shika93 Jun 4 '16 at 18:20