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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.
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