# TaoSetStepDirectionVector

Sets the vector where the solution update is stored.

## Synopsis

    #include "tao_solver.h"
    int TaoSetStepDirectionVector(TAO_SOLVER tao,TaoVec* dx)

Not Collective, but Vec is parallel if TAO_SOLVER is parallel

## Input Parameter

| tao | - the TAO_SOLVER solver context
| dx | - the step direction vector

## Keywords

solution, step direction

## See Also

TaoGetSolution(), TaoGetStepDirectionVector()

Level:developer
Location:src/interface/tao.c
TAO Solver Index
Table of Contents