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Remove all the consonants
Replace NaNs with the number that appears to its left in the row.
Find the sum of the elements in the "second" diagonal
Find the index of the largest value in any vector X=[4,3,4,5,9,12,0,4.....5]
Find the dimensions of a matrix
Counting pulses in a signal
Model a falling body
Produce a cosine wave
Model a mass spring system
Model a simple pendulum
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