Bruce, please check the answers to your test suite. Granted, it has been a while since I took calculus in college, but I'm pretty sure the answers aren't all zero. :-)
Never mind...just noticed you were looking for the error differences, and not the actual values. It's been a while since I took a Reading Comprehension class as well...
This is an "honor system" test suite. For the last case, quad('2*x',0,2) gives 3.9999999999999996, while trapz([0:1/n:2],[0:2/n:4]) gives the exact answer 4 for all values of n from 1 to 100, except n=35, 44, 51, 69, 92, or 100, which all give the same answer as quad.
Which values occur exactly three times?
Tell me the slope
Generate pi using logarithm
Length of a short side
Area of an Isoceles Triangle
Solve the set of simultaneous linear equations
How long do each of the stages of the rocket take to burn?
How many days does the cat take to climb out of the hole?
Similar Triangles - find the height of the tree
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