cool idea! very eye-opening
Second thoughts: I think in the new version of MATLAB, the initial value of ans should be set for empty matrix, not empty string.
So many choices
Right and wrong
Find the largest value in the 3D matrix
Replacing a row
BASICS - sum part of vector
angle in regular polygon
What's size of TV?
Basic commands - Least common multiple
what can you get for exactly amount of money
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