Find the sum of the elements in the "second" diagonal
Compute LOG(1+X) in natural log
Find the Oldest Person in a Room
Create times-tables (★★★)
Extract leading non-zero digit (★★★★★)
Create a vector of n alternating ones and zeros (★★)
Generate a vector which contains a pyramid pattern (★★★★)
Variance computation (★★★)
Vector raised to a power, element-wise (★)
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