Is it possible to use Lato font (http://www.latofonts.com/lato-free-fonts/) in Math mode? (or a similar font) I tried with
\documentclass[11pt]{article}
\usepackage{fontspec}
\usepackage{unicode-math}
\setmainfont{Lato Light}
\usepackage{unicode-math}
\setmathfont{Lato}
% \setmathfont[range=\mathup] {Lato Light}
% \setmathfont[range=\mathbfup]{Lato Bold}
% \setmathfont[range=\mathbfit]{Lato Bold Italic}
\setmathfont[range=\mathit] {Lato Light Italic}
\begin{document}
some math
\begin{equation}
\lim_{a\rightarrow \infty} f(a)\alpha = \sum_{i=0} g_{i} \sqrt{h_{i}}
\end{equation}
\end{document}
but the summation symbol looks too small and the square root symbols are messed up.
I've also tried using pdflatex with the mathastext package but it doesn't work nicely with the Greek letters or the math symbols.