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Sometimes, then I am running meld(); it shows kernel crashed, for example:


h_{m? n?}::Metric.
h^{m? n?}::InverseMetric.
h_{m? n?}::Symmetric.
h^{m? n?}::Symmetric.
F_{m? n?}::AntiSymmetric.
h_{m n}::Depends(\partial{#}).
h^{m n}::Depends(\partial{#}).
\Gamma^{\alpha}_{\mu\nu}::TableauSymmetry(shape={2}, indices={1,2}).
\Gamma^{m}_{n q}::TableauSymmetry(shape={2}, indices={1,2}).
ex := 1/2 h^{a b} F_{n b} \partial_{a}(\pi) \partial_{m}(\psi) (\phi)**2 +  1/2 h^{a b} F_{m b} \partial_{a}(\pi) \partial_{n}(\psi) (\phi)**2-A_{m} \partial_{a}(\phi) \partial_{b}(\pi) \partial_{n}(\psi) \phi h^{a b}-A_{n} \partial_{a}(\phi) \partial_{b}(\pi) \partial_{m}(\psi) \phi h^{a b};



I'm not sure, but may be it happens only in a case of combination rename_dummies and meld.

in General questions by (1.0k points)

This does not crash for me with the current github master branch. Are you using that version or something earlier?

I'm using cadabra2-2.3.2-ulyana, and I tried this piece of code again, and it crashes when I try to execute the last 3 lines a second time. In a larger program, it usually crashes the first time. enter image description here

enter image description here

Ok, I can reproduce this now. WIll have a look.

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