In 5.50, running simplify_sum(sum(i*x^i, i, 0, inf)); returns und unconditionally. In 5.49 it used to query for assumptions on x.
simplify_sum(sum(i*x^i, i, 0, inf));
und
Other sums, such as simplify_sum(sum(x^i, i, 0, inf)); still work.
simplify_sum(sum(x^i, i, 0, inf));
Bisected to https://sourceforge.net/p/maxima/code/ci/afa88b539ca88b9748701824e7c7b44601e8f174
Fixed by commit [3a1bb1].
Commit: [3a1bb1]
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Bisected to https://sourceforge.net/p/maxima/code/ci/afa88b539ca88b9748701824e7c7b44601e8f174
Fixed by commit [3a1bb1].
Related
Commit: [3a1bb1]