my first experiment
Congratulations on solving this problem. For future endeavours you might consider the following: (1) many common calculations already have dedicated functions available to compute them in MATLAB; (2) for generality you might have to initialise y=-Inf, not y=0; (3) for generality you might have to iterate over 1:size(x,#), not 1:2.
Which doors are open?
Replace NaNs with the number that appears to its left in the row.
Who has power to do everything in this world?
Add a row of zeros on top of a matrix
true or false
Automatic String Editing
Simple String Concatenation
Matrix element wise multiplication
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