readme update

Author: jacobwilliams

README.md

@@ -33,7 +33,7 @@ A work in progress.
      * evaluate function at specified fixed points
   * Has four options for variable bounds (`xlow<=x<=xupp`):
      * Ignore bounds
-     * Scalar method: The Newton search direction is changed by checking each `x` component individually. If a component is on a bound, its value is set to the bound. The result is the new line search direction.
+     * Scalar mode: The Newton search direction is changed by checking each `x` component individually. If a component is on a bound, its value is set to the bound. The result is the new line search direction.
      * Vector mode: The Newton search direction is not changed, but, the magnitude is walked back so that no variable violates their bounds.
      * "Wall" mode: Similar to scalar mode, except after modifying the search direction vector, each line search step keeps any values constant that were put on the bounds.
   * Has three options for computing the function vector norm: