Test if integer i is a number in the fibonacci sequence. Return true if it is.
Better bullseye matrix
Similar Triangles - find the height of the tree
Getting logical indexes
Rotate input square matrix 90 degrees CCW without rot90
Make a 1 hot vector
Check if number is a square number
Convert Fahrenheit to Kelvin
Check if integer is a prime number
Calculate the area of a circle
Calculate days until Christmas
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