dolfin team mailing list archive

[Kristian Ølgaard <k.b.oelgaard@xxxxxxxxx>]

Is printing the output from expand_derivatives good enough for you?

from ufl.algorithms import expand_derivatives
element = FiniteElement("Lagrange", triangle, 1)
u   = Coefficient(element)
du = TrialFunction(element)
v   = TestFunction(element)
L1 = u**2*v*dx
J1 = derivative(L1,u,du)
print expand_derivatives(J1)

Kristian

On 5 August 2011 08:01, Johan Hake <johan.hake@xxxxxxxxx> wrote:
> Hello!
>
> I am suspecting that there are a bug in the differentiation algorithm. How can
> I debug the result of a call to derivative(form)?
>
> Johan
>
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