If a string is able to be entirely converted to an integer, return a "true" flag. Otherwise, return a false flag. For example:
a = '32';
isconvertible(a)
Would return logical(1)
a = '32f';
isconvertible(a)
Would return logical(0)
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The letter i is technically a complex number. So it should return true.
Rafael, the question askes for an integer specifically and not a number (let alone a complex number).
The test suite has been separated into individual test cases.