I solved the first test suite symbolically to make sure I was on the right path an got:
[1.0, 6.4839432567518947511762312927844, 9.0049224364695494006414430797622, 8.992494072596270056922480305016, 6.9752731606055591524878412503205, 3.6901871946858786387135688683041, 0].
I am not sure why it would be wrong.
Dy = diff(y);
Sorry David. I made a mistake with the signs in the last term of the equation. I "modified" the problem description (quotes intentional). This version should work, but please let me know if it doesn't.
So many choices
Find the sides of an isosceles triangle when given its area and height from its base to apex
List modest numbers up to n
Determine the Zeckendorf expansion of a number
Compute the arithmetic derivative of integers
List prime anagrams of a number
Determine whether a square can be drawn on a grid of dots
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