Good news - Yay! There *is* a single function for it. Bad news - It was introduced in 2014b, and my newest version is 2007b.
Finding Perfect Squares
The Hitchhiker's Guide to MATLAB
Angle between two vectors
Number of 1s in a binary string
Square wave average calculation
Numbers in extended form
Reindex a vector
Two fractions, one sum
The Hills Are Alive...
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