Limits and Continuity
Delta Epsilon Proofs
$\displaystyle\lim_{(x,y)\rightarrow(2,3)}(2x^3+3y^2-2y)$
Limits at Indeterminate Values
$\displaystyle\lim_{(x,y)\rightarrow(1,2)}\frac{y^2-5x+x^2}{y-2x}$