﻿功能:以10为底的对数运算

格式:log10(a)

说明:a可以为矩阵(此时对矩阵里的每个元素进行运算),也可以为数字(此时对本数字进行运算)

例子:

x =
 [ 69.4186357638885  92.1004041992595  26.8114049112477
   85.6649515617941  85.2955676081104  78.6668200412145
   83.8496410212711  12.9909401819999  40.1312348154053 ]

log10(x)//回车得到如下结果
ans =
 [ 1.84147607453221  1.96426153618081  1.42831957150681
   1.93280317365399  1.93092646360183  1.89579159498334
   1.92350120763602  1.11364058302675  1.60348252293509 ]