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How to split a number in MATLAB?

How do I find out whether a number is an integer in Matlab?

  • (I'm looking for the mathematical definition of integer as positive and negative whole numbers, not the Matlab integer class)

  • Answer:

    The floating point math convention used by MATLAB (and everyone else) has limited precision. Round-off error, for instance, may leave numbers which should be true integers slightly off from integral values (like 17.00000000023 instead of 17). Assuming that this problem has not ballooned terribly in your calculations, you can try something like the following: abs(MyNumber - round(MyNumber)) < 0.00000001

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In my last assignment, the method I used to determine if a number is integer is to round it up, then deduct it from the original number. If the result is zero, then it is an integer. Otherwise, it is not.

pateoh

if there is no inbuilt function, write an elementary function for yourself dude.

ZXSpectrumDX!!

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