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.
Determine Whether an array is empty
Arrange vector in ascending order
Fill a zeros matrix
03 - Matrix Variables 6
Square root of a number
Basics - not so easy division
BASICS - sum part of vector
Basic commands - Greatest common divisor
Basic commands - Least common multiple
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