I am trying to use roboto font documentwise. while the roman fonts are working fine, greek fonts are giving problem.

$\gamma = G$

Any solution please? enter image description here

**UPDATE 1 ** Henri's solution is giving me error(using xelatex):

kpathsea: Running mktexmf Roboto
! I can't find file `Roboto'.
<*> ...:=ljfour; mag:=1; nonstopmode; input Roboto

Please type another input file name
! Emergency stop.
<*> ...:=ljfour; mag:=1; nonstopmode; input Roboto

Transcript written on mfput.log.
grep: Roboto.log: No such file or directory
mktextfm: `mf-nowin -progname=mf \mode:=ljfour; mag:=1; nonstopmode; input Roboto' failed to make Roboto.tfm.
kpathsea: Appending font creation commands to missfont.log.

While using together with fontspec, I am getting a clash of packages

1 Answer 1


Just use mathspec.


  Hello world! $\gamma = G$
  \[ a^2 + b^2 = c^2 \]


enter image description here

  • Any idea, Henri?
    – BaRud
    Oct 4, 2017 at 7:23

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