bundles / scipy latest / scipy / optimize / _lsq / common / intersect_trust_region

function

`scipy.optimize._lsq.common:intersect_trust_region`

source: /scipy/optimize/_lsq/common.py :18

Signature

def intersect_trust_region ( x , s , Delta )

Summary

Find the intersection of a line with the boundary of a trust region.

Extended Summary

This function solves the quadratic equation with respect to t ||(x + s*t)||**2 = Delta**2.

Returns

t_neg, t_pos : tuple of float: Negative and positive roots.

Raises

: ValueError: If s is zero or x is not within the trust region.

Aliases

scipy.optimize._lsq.common.intersect_trust_region