cupy.linalg.eigvalsh¶

cupy.linalg.eigvalsh(a, UPLO='L')[source]¶

Calculates eigenvalues of a symmetric matrix.

This method calculates eigenvalues a given symmetric matrix. Note that cupy.linalg.eigh() calculates both eigenvalues and eigenvectors.

Note

Currenlty only 2-D matrix is supported.

Note

CUDA >=8.0 is required.

Parameters:	a (cupy.ndarray) – A symmetric 2-D square matrix. UPLO (str) – Select from `'L'` or `'U'`. It specifies which part of `a` is used. `'L'` uses the lower triangular part of `a`, and `'U'` uses the upper triangular part of `a`.
Returns:	Returns eigenvalues as a vector.
Return type:	cupy.ndarray