It is more or less like this...........mas o menitos............

means that and do not represent the same math object (Both symbolsdo not have the same value). (The forms !=, /= or <> are generally used in programming languages where ease of typing and use of ASCII text is preferred.) x ≈ y means x is approximately equal to y.

List of mathematical symbols - Wikipedia, the free ...

https://en.wikipedia.org/wiki/List_of_mathematical_symbols

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List of mathematical symbols - Wikipedia, the free ...

https://en.wikipedia.org/wiki/List_of_mathematical_symbols

Wikipedia

means that and do not represent the same math object (Both symbols do not have the same value). (The forms !=, /= or <> are generally used in programming languages where ease of typing and use of ASCII text is preferred.) x ≈ y means x isapproximately equal to y.

‎List of mathematical symbols ... - ‎Greek letters used - ‎Mathematical notation

Approximation - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Approximation

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Unfortunately no consistent notation is used throughout mathematics and some texts will use ≈ to mean approximately equal and ~ to mean asymptotically equal whereas other texts use the symbols the other way around.

‎Linear approximation - ‎Fitness approximation - ‎Category:Approximations

Equals sign - Wikipedia, the free encyclopedia

https://en.wikipedia.org/wiki/Equals_sign

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The equals sign or equality sign (=) is a mathematical symbol used to ... 4.1Approximately equal; 4.2 Not equal; 4.3 Identity; 4.4 Isomorphism; 4.5 In logic; 4.6