Hello The stiffness matrix of the governing equation is defined as:
Ke = x * grad_phi_i * grad_phi_j
with the integral sign of course and dx at the end.
Whilst assembling the matrix, I need to multiply with x. How do I obtain this
value. I've tried:
q_point, i and others but to no avail.
What do I actually use for x in the above matrix.
Thanks in advance.
Pietro
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