LaTeX
Used by 41 peoplelatex-project.org ↗

“Academic conferences push almost all of the typesetting work onto the authors, and for this LaTeX is still definitely the common tool.”
Stephen Strowes Interview, Network measurements researcher · via Uses This 
“I've tried LaTex, because that's what all the cool science kids are doing, but I don't think the hassle is worth it.”
Daniel Quintana Interview, Research scientist · via Uses This 

“I use vim for all my coding, writing, TeXing, and general text editing.”
Jeremy Kun Interview, Infrastructure optimisation (Google) · via Uses This 
“I wouldn't recommend using any of these for actually producing a finished 80,000-word thesis though, so as I put the final touches on mine I'm about to embark on the journey of re-learning LaTeX, which is a typesetting mark-up language that produces gorgeous documents.”
Milena Popova Interview, Activist, PhD researcher (consent in fan fiction) · via Uses This 
“There's a lot of LaTeX in my life, come to think of it.”
Kyle Kingsbury Interview, Computer safety researcher · via Uses This 

“When fancier print formatting is required, that means converting to LaTeX, but most of the time I just dump my work from Markdown to PDF, HTML, DOC, etc.”
Charles Berret Interview, Communications Ph.D. student (Columbia) · via Uses This 
“I use some custom LaTeX templates with Pandoc.”
Lincoln Mullen Interview, Historian, teacher · via Uses This 
“Most of my writing is in LaTex markup.”
Brandon Lucia Interview, Computer researcher, musician (netcat) · via Uses This 
“With TextMate I write papers in LaTeX, with Safari I write my blog and waste precious time and my mail server setup is responsible for organizing pretty much all of my life.”
Jeffrey Ely Interview, Professor of economics (Northwestern University) · via Uses This 
“a conference paper) I'll usually use LaTeX.”
Damien Miller Interview, Open-source developer (OpenSSH, OpenBSD) · via Uses This 
“For books and more complex documents, I use LaTeX.”
John MacFarlane Interview, Philosophy professor, developer (pandoc, gitit) · via Uses This 
“In those cases, I find myself falling back to writing in LaTeX.”
Kieran Healy Interview, Sociologist · via Uses This 
“When I need to typeset something, like a design document or an invoice, I use LaTeX.”
Jason Rohrer Interview, Game developer (Passage) · via Uses This