66 lines
3.1 KiB
Plaintext
66 lines
3.1 KiB
Plaintext
---
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title: NumPyLSsolver
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description: API reference for qiskit.aqua.algorithms.NumPyLSsolver
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in_page_toc_min_heading_level: 1
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python_api_type: class
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python_api_name: qiskit.aqua.algorithms.NumPyLSsolver
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---
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# qiskit.aqua.algorithms.NumPyLSsolver
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<Class id="qiskit.aqua.algorithms.NumPyLSsolver" isDedicatedPage={true} github="https://github.com/qiskit-community/qiskit-aqua/tree/stable/0.9/qiskit/aqua/algorithms/linear_solvers/numpy_ls_solver.py" signature="NumPyLSsolver(matrix, vector)" modifiers="class">
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The Numpy LinearSystem algorithm (classical).
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This linear system solver computes the eigenvalues of a complex-valued square matrix $A$ of dimension $n \times n$ and the solution to the systems of linear equations defined by $A\overrightarrow{x}=\overrightarrow{b}$ with input vector $\overrightarrow{b}$.
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This is a classical counterpart to the [`HHL`](qiskit.aqua.algorithms.HHL "qiskit.aqua.algorithms.HHL") algorithm.
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**Parameters**
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* **matrix** (`Union`\[`List`\[`List`\[`float`]], `ndarray`]) – The input matrix of linear system of equations
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* **vector** (`Union`\[`List`\[`float`], `ndarray`]) – The input vector of linear system of equations
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### \_\_init\_\_
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<Function id="qiskit.aqua.algorithms.NumPyLSsolver.__init__" signature="__init__(matrix, vector)">
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**Parameters**
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* **matrix** (`Union`\[`List`\[`List`\[`float`]], `ndarray`]) – The input matrix of linear system of equations
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* **vector** (`Union`\[`List`\[`float`], `ndarray`]) – The input vector of linear system of equations
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</Function>
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## Methods
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| ---------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------- |
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| [`__init__`](#qiskit.aqua.algorithms.NumPyLSsolver.__init__ "qiskit.aqua.algorithms.NumPyLSsolver.__init__")(matrix, vector) | **type matrix**`Union`\[`List`\[`List`\[`float`]], `ndarray`] |
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| [`run`](#qiskit.aqua.algorithms.NumPyLSsolver.run "qiskit.aqua.algorithms.NumPyLSsolver.run")() | Execute the classical algorithm. |
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## Attributes
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| ------------------------------------------------------------------------------------------------------ | ---------------------- |
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| [`random`](#qiskit.aqua.algorithms.NumPyLSsolver.random "qiskit.aqua.algorithms.NumPyLSsolver.random") | Return a numpy random. |
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### random
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<Attribute id="qiskit.aqua.algorithms.NumPyLSsolver.random">
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Return a numpy random.
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</Attribute>
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### run
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<Function id="qiskit.aqua.algorithms.NumPyLSsolver.run" signature="run()">
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Execute the classical algorithm.
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**Returns**
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results of an algorithm.
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**Return type**
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dict
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</Function>
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</Class>
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