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.
Sum the numbers on the main diagonal
convert matrix to single column
Find a Pythagorean triple
angle in regular polygon
cross in array
Basics - not so easy division
How many bottles can you drink?
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