(8pt) Tiny (10pt) Small (12pt) Normal (14pt) Large (20pt) Huge 颜色 red green blue 函数 displaystyle arg det dim gcd hom ker Pr sup exp lg ln log log e log 10 limit liminf limsup maximum minimum infinite sin cos tan sin-1 cos-1 tan-1 csc sec cot sinh cosh tanh coth sinh-1 cosh-1 tanh-1