问题描述：
matlab反三角函数结果为什么运行不出来呢?
m=1274;
k1=1503.3;
k2=976.3;
L=2.578;
a=1.016;
b=1.562;
Iz=1523;
K=0.00031;
x=11.11;
y=0.2058;
z=-0.9913;
f=(atan（sqrt(1-z.^2)./(-m*a.*x.*y/(L*k2)-z)）)./(y.*sqrt(1-z.^2))
m=1274;
k1=1503.3;
k2=976.3;
L=2.578;
a=1.016;
b=1.562;
Iz=1523;
K=0.00031;
x=11.11;
y=0.2058;
z=-0.9913;
f=(atan（sqrt(1-z.^2)./(-m*a.*x.*y/(L*k2)-z)）)./(y.*sqrt(1-z.^2))
问题解答：
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