36 lines
3.5 KiB
Plaintext
36 lines
3.5 KiB
Plaintext
---
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title: converters
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description: API reference for qiskit.optimization.converters
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in_page_toc_min_heading_level: 2
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python_api_type: module
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python_api_name: qiskit.optimization.converters
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---
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<span id="module-qiskit.optimization.converters" />
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<span id="qiskit-optimization-converters" />
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# Optimization converters
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<span id="module-qiskit.optimization.converters" />
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`qiskit.optimization.converters`
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This is a set of converters having convert functionality to go between different representations of a given [`QuadraticProgram`](qiskit.optimization.problems.QuadraticProgram "qiskit.optimization.problems.QuadraticProgram") and to interpret a given result for the problem, based on the original problem before conversion, to return an appropriate [`OptimizationResult`](qiskit.optimization.algorithms.OptimizationResult "qiskit.optimization.algorithms.OptimizationResult").
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# Base class for converters
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| -------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------- |
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| [`QuadraticProgramConverter`](qiskit.optimization.converters.QuadraticProgramConverter "qiskit.optimization.converters.QuadraticProgramConverter") | An abstract class for converters of quadratic programs in Qiskit’s optimization module. |
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# Converters
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| -------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| [`InequalityToEquality`](qiskit.optimization.converters.InequalityToEquality "qiskit.optimization.converters.InequalityToEquality") | Convert inequality constraints into equality constraints by introducing slack variables. |
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| [`IntegerToBinary`](qiskit.optimization.converters.IntegerToBinary "qiskit.optimization.converters.IntegerToBinary") | Convert a [`QuadraticProgram`](qiskit.optimization.problems.QuadraticProgram "qiskit.optimization.problems.QuadraticProgram") into new one by encoding integer with binary variables. |
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| [`LinearEqualityToPenalty`](qiskit.optimization.converters.LinearEqualityToPenalty "qiskit.optimization.converters.LinearEqualityToPenalty") | Convert a problem with only equality constraints to unconstrained with penalty terms. |
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| [`QuadraticProgramToQubo`](qiskit.optimization.converters.QuadraticProgramToQubo "qiskit.optimization.converters.QuadraticProgramToQubo") | Convert a given optimization problem to a new problem that is a QUBO. |
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