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I'd like to check the expression x3=O(x2) when x → 0 in Wolfram Alpha.

How can I do it?

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Well, one of the definitions uses a limit: x3=O(x2) if and only if the limit when x → 0 of x3/x2 exists.

And it does:

enter image description here

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  • Hello @Glorfindel than you very much for your answer. I'm looking for a symbol or a function because I need to do operations like O(x^2)+O(x^3) Commented Nov 9, 2021 at 17:36
  • @GennaroArguzzi I understand but I'm not sure that's possible. Wolfram Alpha isn't Mathematica after all ... Commented Nov 9, 2021 at 17:40

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