Level sets
Level sets
Animation courtesy of Professor Louis Talman of Metropolitan State College of Denver
Limits
a graph where the limit at (0,0) exists
graph of sin(x
2
+y
2
)/(x
2
+y
2
)
a graph where the limit at (0,0) does not exist
graph of 2xy/(x
2
+y
2
)
Partial Derivatives
Geometric interpretation of partial derivatives
Courtesy of Professor Jonathan Rogness of the University of Minnesota