u\bun\bna\bar\bry\by-\b-s\bsq\bqr\brt\bt - square root
D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
- initial text r = sqrt(x^2 + y^2) + sqrt() + sqrt final text
+ initial text _\br = sqrt(_\bx^2 + _\by^2) + sqrt(_\ba + _\bb) + sqrt() + sqrt final text
OpenBSD February 12, 2017 OpenBSD