Download Kettinglijn_hoge_waa.mw

Hello,

I have been trying to plot a catenary for two boundary conditions. The plot shows the position of the cable but the solution is complex for part of the domain. For the part of the domain where the solution is complex, the plot is empty. Other boundary conditions give me a real answer, but I do need these ones... I have tried running my files multiple...

Dear members,

I am trying to solve a maximalization problem, but in stead of solving my problem Maple only displays the equation that I am trying to solve.

Example:

>  Sigma_max:= maximize(-N/(b*h)+(-EI*(diff(u(x),x,x)))*0.5*h/I, x=0..l = sigma_t;

sigma_max:=maximize(-0.400000cos(0.25pi)N+564e*N*x .....etc...., x = 0..250)=1.43 10⁶