第1个回答 2013-03-25
syms x y
A=[cos(x) 0 sin(x);0 1 0;-sin(x) 0 cos(x)];
B=[cos(y) sin(y) 0;-sin(y) cos(y) 0;0 0 1];
A*B
输出结果:
[ cos(x)*cos(y), cos(x)*sin(y), sin(x)]
[ -sin(y), cos(y), 0]
[ -cos(y)*sin(x), -sin(x)*sin(y), cos(x)]
第2个回答 2013-03-25
> syms x y
>> A=[cos(x) 0 sin(x);0 1 0;-sin(x) 0 cos(x)];
>> B=[cos(y) sin(y) 0;-sin(y) cos(y) 0;0 0 1];
>> A*B
ans =
[ cos(x)*cos(y), cos(x)*sin(y), sin(x)]
[ -sin(y), cos(y), 0]
[ -cos(y)*sin(x), -sin(x)*sin(y), cos(x)]