Add plain Gradient Descent optimizer#6459

Merged

mergify[bot] merged 14 commits intoQiskit:mainfrom Cryoris:gradient-descent

Jun 1, 2021

+342-4

Commits on May 25, 2021

Commits on May 29, 2021

fix SPSA -> Gradient descent in docstrings
Cryoris
committed
Merge branch 'gradient-descent' of github.com:Cryoris/qiskit-terra into gradient-descent
Cryoris
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Commits on Jun 1, 2021

Merge branch 'main' into gradient-descent
mergify[bot]
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