Test case x=[11 22 132] will cause some solutions here to fail.
Great catch! Test case added; and by "some solutions" you mean "All solutions except yours and mine."
Well done, Tim. I noticed the bug of my solution, but it did work for the old test suit, and I was too lazy to fix the bug.
Select every other element of a vector
Column norms of a matrix
Make a random, non-repeating vector.
Create an index-powered vector
Longest run of consecutive numbers
High Precision Square Root (Inspired by Project Euler 80)
Fun with a compass
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