Remove the vowels
Remove NaN ?
Determine Whether an array is empty
If you have matrix A, create matrix B using matrix A as an "element"
Find the sides of an isosceles triangle when given its area and height from its base to apex
Vector creation using colon operator
Swap the first and last columns (★★)
Logarithmically spaced vector creation using logspace
Stacking vectors into a matrix
Sum of elements of a vector (★★★)
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