Suppose we are given several vectors $\alpha_1,\dots,\alpha_m$ in an $n$-dimensional space. The convex cone spanned by them is defined to be the set \begin{equation} C=\{\sum_{i=1}^mt_i\alpha_i|\ t_i\ge0,\forall i\}. \end{equation}
However, computing the condition of this cone by hand is usually hard. Besides, I also need to compute the intersection of two convex cones, which is even harder. Does anyone know any online calculator or math programs to do this? Sorry I am really bad at computers...
Thank you so much for your kind help!