ocr: FIGURE 3. Diagrams of DeJong's test functions in two dimensions. To accentuate the important features of the functions, they have been multiplied by-1 and modified by order-preserving transtormations. A. Sphere. B. Rosenbrock's: saddle. C. Step. - - a - OTNIO - - - D. Quartic. E. Shekel's foxholes.
