matrix in test case 3 is magical?
sum first circle=73
sum second circle =61....
The test case #5 in is not a magic circle because its radii are not equal (column 3 should be made of two 69s as are all the others, but instead they are 82 and 56). Please fix the test suite whenever possible.
Extract leading non-zero digit
Flip the main diagonal of a matrix
Getting the absolute index from a matrix
Create numeric palindromes and their square roots
remove nans fast
Convert a Cell Array into an Array
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