given 3 sides, find area of this triangle
Return the first and last characters of a character array
Find out missing number from a vector of 9 elements
Back to Basics - Find no. of elements in a matrix?
Median computation (★★★)
Doubling elements in a vector (★★)
Logarithmically spaced vector creation using logspace
Replicate elements in vectors (★★★)
PEMDAS test (★★)
Generate a vector which contains a pyramid pattern (★★★★)
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