I think the test suite is broken, I appear to only get x = [21,6;35,10] as the input and y is being displayed as a vector instead of the matrix that is returned. So either the return is being compared to an x that was not sent or y being a vector is causing the test cases to always fail.
Andrew, I just tried resubmitting my original solution, and the test suite was OK. What is the exact problem that you're having with the test suite when you submit your solution?
Test suite compares y to itself--should compare y to x.
Hah! Great catch. It's fixed now, but you still get a like for being so sneaky...
Project Euler: Problem 8, Find largest product in a large string of numbers
Find the largest value in the 3D matrix
Create Volcano (or Atoll) martix. It is an extension of Bullseye matrix problem.
Divisible by 4
Rolling maximums above a threshold
Circular Primes (based on Project Euler, problem 35)
Still more miles to go before I sleep
Longest run of consecutive numbers
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