更新的计算器（可以完成:四则运算，LOG，LN，X^2，X^3,X^Y,sqrt,n!,1/x,+/-,（sin,cos,tan，cot,Arcsin, Arc

Updated calculator (can be completed: four arithmetic, LOG, LN, X^2, X^3, X^Y, sqrt, n!, 1/x, +/-, (sin, cos, tan, cot, Arcsin , ArcCos, Arctan, ArcCot, sec, Csc, ) (radian)