33 lines
1.4 KiB
Plaintext
33 lines
1.4 KiB
Plaintext
---
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title: eigs
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description: API reference for qiskit.aqua.components.eigs
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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.aqua.components.eigs
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---
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<span id="module-qiskit.aqua.components.eigs" />
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<span id="qiskit-aqua-components-eigs" />
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# Eigenvalues
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<span id="module-qiskit.aqua.components.eigs" />
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`qiskit.aqua.components.eigs`
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These are components designed to find eigenvalues. They were initially designed for use by [`HHL`](qiskit.aqua.algorithms.HHL "qiskit.aqua.algorithms.HHL") which remains their currently principal usage.
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# Eigenvalues Base Class
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| -------------------------------------------------------------------------------------------------- | ------------------------------------- |
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| [`Eigenvalues`](qiskit.aqua.components.eigs.Eigenvalues "qiskit.aqua.components.eigs.Eigenvalues") | Base class for eigenvalue estimation. |
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# Eigenvalues
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| -------------------------------------------------------------------------------------- | ------------------------------------------- |
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| [`EigsQPE`](qiskit.aqua.components.eigs.EigsQPE "qiskit.aqua.components.eigs.EigsQPE") | Eigenvalues using Quantum Phase Estimation. |
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