chiamin

The first argument of LinOp can be `mv` or `mv_ele`. I suggest splitting them to two classes. For `mv`, the construcer can take no argument (if all are their default...

Turn off Lanczos warning

1

I suggest providing an argument in cytnx::linalg::Lanczos to turn off the not-converge warning. Sometimes we don't need an accurate solution in the early of the simulation, and printing the warning...

Common index but not contract

10

It would be useful to have an operation for $C_i = A_i B_i$ or more general $C_i = \sum_j A_{ij} B_{ij}$. We may want to add this method in the...