function?Caw?=?a2caw（att）
%?Calculate?coefficient?matrix?in?Euler-angle?differential?equation.
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%?Prototype:?Caw?=?a2caw（att）
%?Input:?att?-?Euler?algles
%?Output:?Caw?-?coefficient?matrix?such?that?d（att）/d（t）?=?Caw*w（t）
%??????????????where?w（t）?is?angular?velocity
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%?See?also??a2cwa?a2mat.

%?Copyrigh