Qiskit / qiskit / 17238020576

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push

github

Committed by web-flow

Commit Message

Fix ParameterExpression.gradient() to return numeric values for constant derivatives (#14848)

* Fix: ParameterExpression.gradient() to return numeric values for constants

* Add test and fix some issues(lint etc)

* Fix conversion to numeric value

The argument in try_to_value must be set to true for this PR to work. If false then the code will never exercise the path for built-in numerics.

Also simplify the results, no additional Ok(..?) is needed.

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Co-authored-by: Julien Gacon <jules.gacon@googlemail.com>

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10 existing lines in 3 files now uncovered.

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