very cool question: learn some new tricks, and get 10 points, why not?!
Hint to spare the pain : string(NaN)==
Change the sign of even index entries of the reversed vector
Maximum value in a matrix
Find the 9's Complement
Binary code (array)
Cody meets Xiangqi: foresee the unseen (Part 2)
Words Count: A Cell Array Approach
Fast 1-D Convolution (same shape)
Toeplitize a matrix
Generating random matrix with given probability mass function
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