It needs more than one test
agree! it is easy to cheat!
to easy to cheat
The only valid excuse for cheating is when the test suite is broken since we cannot fix it. Kobayashi Maru.
System of equations
Is this matrix orthogonal?
Replicate elements in vectors
Celsius to Kelvin
Find the hypotenuse
Duplicate each element of a vector.
Remove NaN ?
First non-zero element in each column
vectorization in N
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