编辑: 5天午托 | 2019-07-05 |
124 \mathchoice%
125 {\mbox{\textrm>
}}%
126 {\mbox{\small>
}}%
127 {\mbox{\scriptsize>
}}%
128 {\mbox{\tiny>
}}%
129 } \DirectedInfinity \DirInfty Directed In?nity \DirectedInfinity{ complex number } or \DirInfty{ complex number }
130 \newcommand{\DirectedInfinity}[1]{#1 \, \infty}
131 \ne........