Hacker News Reader

> The troff/eqn looks a bit less like line noise

Not necessarily a feature. The eqn syntax does contain more letters and less symbols, but that gives it very low contrast, making it hard to scan the equation and "see" the math symbols through the formatting. When writing a large equation, it helps to have a large contrast between words/symbols and formatting commands. The TeX punctuation helps with grouping and delineation.

View on HN

Furthermore, the LaTeX syntax makes it easier for the computer to parse the document and distinguish actual text from equation symbols.

It depends on the meaning of 'easier', I think. In both cases, 'the computer' can do it, meaning the program `troff` or the program `(la)tex`, and I'm not sure it's reasonable to call one or the other of those programs 'easier' for the computer; but perhaps you are thinking more of something like syntax highlighting?

In that case, I would argue that it's not easy at all with (La)TeX. The obvious difficulty is people mucking about with cat- and char- codes; but, even if that's not happening, you've got things to worry about like old-style `$ $` and `$$ $$` delimiters. I've never seen a highlighter handle `$\text{$math$}$`, or even `$\text{\(math$}\)`, correctly.

Reply on news.ycombinator.com