Stan Math Library
4.9.0
Automatic Differentiation
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void stan::math::opencl_kernels::eigenvals_bisect | ( | const __global double * | diagonal, |
const __global double * | subdiagonal_squared, | ||
double * | low_res, | ||
double * | high_res, | ||
const double | min_eigval, | ||
const double | max_eigval, | ||
const int | n, | ||
const int | i | ||
) |
Calculates i-th largest eigenvalue of tridiagonal matrix represented by a LDL decomposition using bisection.
diagonal | Subdiagonal of L. | |
subdiagonal_squared | Diagonal of D. | |
[out] | low_res | Resulting low bounds on eigenvalues. |
[out] | high_res | Resulting high bounds on eigenvalues. |
min_eigval | Lower bound on all eigenvalues. | |
max_eigval | Upper bound on all eigenvalues. | |
n | Length of D. | |
i | calculate i-th eigenvalue |