OK. I figured out the issue with the test suite. Please check the absolute value of the difference when comparing the computed answers to the correct ones. Otherwise, you'll get some really silly answers. (Like this one! :-)
My, you are tricky, James, finding all those loopholes. I've fixed the test suite to check against upper and lower bounds of each answer.
I was just really curious why one of my answers worked when it didn't include a or b. Some experimentation and a lot of (now wrong) solutions narrowed it down. I had to use some of these equations in my senior project at college, so I knew that the dimensions were very important!
Who Has the Most Change?
Rotate a Matrix
Relative ratio of "1" in binary number
Find the position of first minimum value in an integer array with numbers
Pattern Recognition 1 - Known Unit Length
Weighted Gold/Silver Standard
Rule of mixtures (composites) - lower bound
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