Example 4-10-3 - Maple Help



Chapter 4: Partial Differentiation



Section 4.10: Optimization on Closed Domains



Example 4.10.3



 Find the extreme values of the function $f\left(x,y\right)={x}^{2}-xy+{y}^{2}+1$ on the domain $R$ consisting of the triangular region whose edges are the $y$-axis, and the lines $y=x$ and $y=4$.