This problem is hard due the precision error that floating-point numbers have. The number 0.1 may not be equal to 0.1, be careful.
i am surprised to see why the same thing doesn't work when kept in decimal
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.
Finding Perfect Squares
Back to basics 7 - Equal NaNs
Find nth maximum
Perfect Square or not
How many bottles can you drink?
angle in regular polygon
BASICS - sum part of vector
Basics - not so easy division
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