# Tag Info

Go to the beginning of your text and press C-M-%. That key sequence is bound to the command query-replace-regexp. Give $$[+-]?[0-9]+\|\_<[[:alpha:]]$$/$$[+-]?[0-9]+\|[[:alpha:]]\_>$$ as search string and {\1 \\over \2} as replacement and press RET. Note that this searches for integers maybe composed of several digits and with optional sign + or -. ...