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matlab怎么解一元四次方程?504.4+0.131.*u.^2=14.297.*(-19.313+295.27.*(0.0421.*u)-165.44.*(0.0421.*u).^2+40.874.*(0.0421.*u).^3-3.8445.*(0.0421.*u).^4)

题目详情
matlab怎么解一元四次方程?
504.4+0.131.*u.^2=14.297.*(-19.313+295.27.*(0.0421.*u)-165.44.*(0.0421.*u).^2+40.874.*(0.0421.*u).^3-3.8445.*(0.0421.*u).^4)
▼优质解答
答案和解析
>> fun=inline('-504.4-0.131.*u.^2+14.297.*(-19.313+295.27.*(0.0421.*u)-165.44.*(0.0421.*u).^2+40.874.*(0.0421.*u).^3-3.8445.*(0.0421.*u).^4)','u')
fun =
Inline function:
fun(u) = -504.4-0.131.*u.^2+14.297.*(-19.313+295.27.*(0.0421.*u)-165.44.*(0.0421.*u).^2+40.874.*(0.0421.*u).^3-3.8445.*(0.0421.*u).^4)
>> fzero(fun,[4,6])
ans =
4.9611
u=4.9611