code: private double handleCase1() {
  
  		double stpc = SearchInterpolate.cubic2(fx, gx, stx, fp, gp, stp);
  		double stpq = SearchInterpolate.quadratic(fx,gx,stx,fp,stp);
  
  		// If the cubic step is closer to stx than the quadratic step take that
  		bracket = true;
  		if( Math.abs(stpc-stx) < Math.abs(stpq-stx)) {
  			return stpc;
  		} else {
  			// otherwise go with the average of the twp
  			return stpc + (stpq-stpc)/2.0;
  		}
  	}
docs: stp has a higher value than stx.  The minimum must be between these two values.
  Pick a point which is close to stx since it has a lower value.
  
  @return The new step.