Next: References Up: Claerbout: Eigenvectors for missing Previous: GRADIENT

# CODING

Finally, I introduce the specialized notation I like for optimization manipulations. First, I omit bold on vectors. Second, when a vector is transformed by the operator ,I denote the transformed vector by an upper-case letter. Thus and .Let the scalar denote the distance moved along the gradient. In this notation, perturbations of are
 (6)
A steepest descent method amounts to:
1.