On 8/22/22 10:08, Simon Wiesheier wrote:
As stated, what I tried is to use the operator= according to
LAPACKFullMatrix<double> new_matrix = my_system_matrix .
However, there is an error message
"error: conversion from ‘dealii::SparseMatrix<double>’ to non-scalar
type ‘dealii::LAPACKFullMatrix<double>’ requested
LAPACKFullMatrix<double> new_matrix = tangent_matrix"
There doesn't appear a copy-constructor from FullMatrix (which is what
the compiler is looking for here), but there is a copy operator. Just write
LAPACKFullMatrix<double> new_matrix;
new_matrix = tangent_matrix
Even better, of course, if you wrote a patch to add the copy constructor!
Best
W.
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