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CTK Exchange
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Feb-21-07, 08:09 AM (EST) |
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"Standard notation for the set of nonnegative reals"
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It'struck me that while R+ is very commonly used for the positive reals - see, e.g., https://mathworld.wolfram.com/R-Plus.html - I'm less certain when it comes to the nonnegative real numbers. I think I've seen R with a superscript + and a subscript 0. N* is sometimes used for Z+, but R* is used otherwise, according to Mathworld. |
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