The ‘modern’ looking sans-serif font I use recently in 
equations on this blog is called ‘Computer Modern Bright’, and actually is not so modern at all: Designed by Walter Schmidt in 1996, it is still to date the only free sans-serif font available for with full math support. Type‑1 versions of this font are available in the cm-super package, but I didn’t need to install anything, because apparently, the QuickLaTeX WordPress plugin has them already. The only thing to do was adding just one line to the preamble:
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{cmbright} % computer modern bright
I also turned on the SVG images feature that was added with version 3.8 of QuickLatex, so the equations are no longer pixellated on retina displays or when zooming in! Neat, huh?
Fascinating, very nice sharing.
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