我试图解决具有边界条件的四阶微分方程,但函数dsolve
没有给出解。它运行了一个多小时。我所做的代码是
syms omega delta x f(x)
df(x) = diff(f);
dff(x) = diff(df);
dfff(x) = diff(dff);
S = dsolve(diff(f,4) + 2*delta*diff(f,3) + delta^2*diff(f,2)...
- omega^2*f == 0, f(0) == 0, df(0) == 0, dff(1) == 0, dfff(1) == 0);
他们的任何替代方法是否能找到其非平凡的解决方案?