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# scipy.linalg.cho_solve_banded

`scipy.linalg.``cho_solve_banded`(cb_and_lower, b, overwrite_b=False, check_finite=True)

  Solve the linear equations A x = b, given the Cholesky factorization of A.

  Parameters: | (cb, lower) : tuple, (array, bool) cb is the Cholesky factorization of A, as given by cholesky_banded. lower must be the same value that was given to cholesky_banded. b : array Right-hand side overwrite_b : bool, optional If True, the function will overwrite the values in b. check_finite : bool, optional Whether to check that the input matrices contain only finite numbers. Disabling may give a performance gain, but may result in problems (crashes, non-termination) if the inputs do contain infinities or NaNs.
  Returns: | x : array The solution to the system A x = b

  See also

  `cholesky_banded`
    Cholesky factorization of a banded matrix

  Notes

  New in version 0.8.0.