WOLFRAM|DEMONSTRATIONS PROJECT

Second-Order Partial Derivatives

​
f
xx
+
-
f
yy
+
-
f
xy
+
-
partial direction
x
y
plot type
3D
contour
x
0
y
0
f
x
= 0
This Demonstration helps students understand what second-order partial derivatives measure. As either
x
or
y
varies, you can see how a given partial derivative changes both numerically and graphically.