Why is rand out on these ? :)
Flip the main diagonal of a matrix
Whether the input is vector?
Getting logical indexes
Circular Primes (based on Project Euler, problem 35)
Count letters occurence in text, specific to words with a given length.
Convert a temperature reading from Celsius to an unknown scale
Compute the missing quantity among P, V, T for an ideal gas
Propagate the effects of a blockage in a chemical plant
Design a tubesheet for shell-and-tube heat exchangers
Calculate the sphericity of a Raschig ring
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