perhaps you should specify that y is in the order of the first occurence of each unique element of x
This would be a better problem if unique and sort functions were not allowed
Solution without using sort(.) or unique(.) .
Solution without using sort(_) or unique(_) .
Note 1) this solution does not use sort() anywhere :) 2) the more elegant "stable" is not available for unique in pre-2012 MATLAB.
Read a column of numbers and interpolate missing data
Create matrix of replicated elements
Set some matrix elements to zero
Angle between two vectors
Find the list of all open files
Fill a zeros matrix
Sophie Germain prime
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