| OCR Text |
Show 99 where (-G/dG) distance expression be can is result Gu -Fv the that + step We point we do can the to direction the F=O and curve denominator directional of be formed need to insure this by an of a this derivative + dv thought of as by slicing the Gv iterating function G of initial guess has iteration which takes the that point gradient Gu (-Yv,Yu). auxilliary "closest" the du Gv can along the tangent direction Next The as Fu function univariate the it. along the to tangent interpreted dG The be FuGv-FvGu step direction the in of G step will the is, That dG= F=O on by F=O. the moving in the G in the F. F Vo until F is within Finally desired of the we the need direction. error to This F Fv - of limit O. numerically differentiate is done according to the derivative G(u+du dG E, v+dv E)-G(U,v) E where du = Fv dv Fu definition |