1. Licensed Electrical & Mechanical Engineer BMayer@ChabotCollege.edu
ENGR/MTH/PHYS 25
Prob Round-End
Fenced Enclosure
Bruce Mayer, PE
Licensed Electrical & Mechanical Engineer

2. Given Fenced Enclosure
Given Parameters
Total Enclosed Area = 1600 Square Feet (1600 ft2)
Fence Costs in $/Lineal-Ft
Straight = 30
Curved = 40
Determine Lo-Cost R & L

3. Given Fenced Enclosure
Game Plan
Solve for COST FUNCTION f(R)
Solve by BOTH of
Hand Calculus
Develop Cost Function
Use min command on Cost Vector
Will hunt-down LoCost & Address

4. Check Extremes ∞
LONGEST

5. Check Extremes The Cost at Maximum R
Use the Extremes to Set the Plotting Range

9. 2

10. .m File Script

11. Answer Graphically

12. L vs R Plot (for Fun)

13. ENGR/MTH/PHYS 25
Appendix
Previous Analyses

17. 2-20