# Why use oldstyle numbers? It's inconsistent with MathJax [duplicate]

Writing numbers in the main text produces oldstyle numbers: 0123456789, while typing the same numbers in "math mode" produces modern style numbers: $0123456789$. While I'm a big fan of oldstyle numbers (in literature, at least), this contrast makes this entire page look inconsistent. I don't think reprogramming MathJax is an option, so could we stop using oldstyle numbers?
• To summarise @Martin's link, this answer suggests (via a quote of Knuth) using old-style numbers for text, such as 2015, and new style for maths, such as $12$ does not divide $2$''. It is also worth pointing out Knuth's interesting TUGboat article, where the quote is from. – user1729 Jan 13 '15 at 17:17