very cool question: learn some new tricks, and get 10 points, why not?!
Hint to spare the pain : string(NaN)==
Make a checkerboard matrix
Check if sorted
Reverse the elements of an array
Is the input divisible by 3?
Find the sides of an isosceles triangle when given its area and height from its base to apex
Block average ignoring NaN values
Combine the first and last names
Fast 1-D Convolution (same shape)
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