When did the "function ans = " trick start working again?
It started to work when Cody server upgraded its MATLAB to R2016b. So strictly speaking, it's not just a Cody trick, but a MATLAB R2016b feature. This feature was somewhat discontinued in R2016a, but it works in many earlier versions.
Convert a numerical matrix into a cell array of strings
Duplicate each element of a vector.
Count up then down
The sum of the numbers in the vector
How many digits are there?
Find the diagonal of the square of side L
Probabilities - More brains than luck
Non trivial identities - differentiation
Probabilities - Balls and urns - 01
Non trivial identities - summation
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