Hello,

so assume you want to solve:

int_0^1 grad(u)grad(v) dx = int_0^1 v dx

on [0,1] mesh with let’s say N=5 cells (i.e. 6 nodes). For the basis, we want to use tent functions. I.e. something like this Tent functions

The cells are of width h=1/N, so they are equidistant.

I somehow fail to find out how I can use such a simple 1D mesh.