What Is the Mathematical Operator That Returns 1 for Equal Variables?

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rhenretta
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Sorry, pretty basic, but for the life of me I can't think of the operator... if i=j it would return 1, and if i != j it would return 0...
 

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no, I remember seeing in a math or physics book once, a mathematical operation that could be done, I believe it was used in context with a summation operator, to obtain a value of 1 if i and j were the same value, and 0 if not.
 

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