Problem with DirectionalTargetDerivative #3
Description
If I use the kernel created by DirectionalTargetDerivative(HelmholtzKernel(2)), in pytential the following error ensues when I try to create the operator sym.D(kernel,...)
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If I use the kernel created by DirectionalTargetDerivative(HelmholtzKernel(2)), in pytential the following error ensues when I try to create the operator sym.D(kernel,...)