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.
Is this matrix orthogonal?
Determine Whether an array is empty
Angle between Two Vectors
Make a random, non-repeating vector.
Convert a vector into a number
Non trivial identities - differentiation
Area of polygon
Remove collinear points in a set of 2D points defining a polygon
Performance - summation
Probabilities - More brains than luck
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