急求这个方程的求解!
<P>急求这个方程的求解!tan(36.25*L)*(0.00237+37.37*L^2+L)-0.0859*L-145*L^2=0</P> =fzero('tan(36.25*x)*(0.00237+37.37*x^2+x)-0.0859*x-145*x^2',000000.1)初始迭代值x0=000.1你可以变得到的结果Optimization terminated: first-order optimality is less than options.TolFun.
x =
-2.7602e-004
fval =
-8.3179e-006
exitflag =
1 上面给的是matlab的解法
maple如下:
eqn := tan(36.25*L)*(0.237e-2+37.37*L^2+L)-0.859e-1*L-145*L^2 = 0
sols :=
sols :=
页:
[1]