Re: 请教; 写paper时遇到的几个问题,在线等。# EE - 电子工程f*e2003-12-22 08:121 楼answers:1. orthant (for multi-dimensional space) or octant (for 3D space)2 and 3. \boldsymbol{}not totally sure of 1 although I used it before myself. Good luck