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yxh821011: ½ð±Ò+3, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2012-08-07 13:20:29
>> t=0;
>> A =[ -cos(t),  cos(t)-sin(t),   sin(t)
       sin(t),    -sin(t)-cos(t),   cos(t)
       cos(t),   -cos(t)+sin(t),  -sin(t)];
>> A

A =

    -1     1     0
     0    -1     1
     1    -1     0
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3Â¥2012-08-07 23:03:25
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