1、用MATLAB完成二进制，十进制，十六进制之间的转换函数：BIN2NUM、NUM2HEX等（关键学会用help）.
2、help elfun -> Elementary math functions.初等数学函数
help elmat-> Elementary matrices and matrix manipulation.
matlab/general - General purpose commands.
matlab/ops - Operators and special char...
matlab/lang - Programming language const...
matlab/elmat - Elementary matrices and matrix manipulation.
matlab/elfun - Elementary math functions.
matlab/specfun - Specialized math functions.