Remove any row in which a NaN appears
sum of non-primes
Finding perimeter of a rectangle
Divisible by 10
Given a square and a circle, please decide whether the square covers more area.
Reindex a vector (★★)
PEMDAS test (★★)
Approximate functions 1 (★★★)
Replicate elements in vectors (★★★)
Sum of elements in a vector (★)
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