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!
Read a column of numbers and interpolate missing data
Find the sum of the elements in the "second" diagonal
intersection of matrices
Sum of the Matrix Elements
Check that number is whole number
Lights Out 12 - 5x5, three stages, <7 moves
Lights Out 9 - 5x5, light-only solution? II
Combined Ages 1 - Symmetric, n = 3
Combined Ages 4 - Non-symmetric with multiples, n ≥ 3
Divisible by n, prime vs. composite divisors
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office