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.
Calculate the area of a triangle between three points
Replace multiples of 5 with NaN
Is it a number?
Remove collinear points in a set of 2D points defining a polygon
A shooting competition
Non trivial identities - summation
Find the diagonal of the square of side L
Non trivial identities - reshape
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