%例5-5  使用char函數將ASCII碼轉換為字符串。
%解：在“命令窗口“中輸入如下命令，并按Enter鍵確認。
>> t=['Peking University in discrimination debate'
      'Middle East has two new leaders           ' 
      'Romania, Bulgaria to join EU in 2007      '] 
t =
Peking University in discrimination debate
Middle East has two new leaders           
Romania, Bulgaria to join EU in 2007      
>> s=abs(t)
s =
  Columns 1 through 14 
80   101   107   105   110   103    32    85   110   105   118   101   114   115
77   105   100   100   108   101    32    69    97   115   116    32   104    97
82   111   109    97   110   105    97    44    32    66   117   108   103    97
  Columns 15 through 28 
105   116   121    32   105   110    32   100   105   115    99   114   105   109
115    32   116   119   111    32   110   101   119    32   108   101    97   100
114   105    97    32   116   111    32   106   111   105   110    32    69    85
  Columns 29 through 42 
105   110    97   116   105   111   110    32   100   101    98    97   116   101
101   114   115    32    32    32    32    32    32    32    32    32    32    32
32   105   110    32    50    48    48    55    32    32    32    32    32    32
>> b=char(s)
b =
Peking University in discrimination debate
Middle East has two new leaders           
Romania, Bulgaria to join EU in 2007      
>> s=char('Peking University in discrimination debate','Middle East has two new leaders ''Romania, Bulgaria to join EU in 2007')
s =
Peking University in discrimination debate                           
Middle East has two new leaders 'Romania, Bulgaria to join EU in 2007