 | 1 | initial version |
Sage's global "NN" is the modern definition of the natural numbers (N0, which includes zero); how do I get instead an object representing the classical definition (N1 a.k.a. N*, which excludes zero)?
http://en.wikipedia.org/wiki/Natural_number
sage: NN
Non negative integer semiring
If I want to make further set subtractions, how do I do so? What trade-offs might I encounter typically with such operations?
| | 2 | retagged |
Sage's global "NN" is the modern definition of the natural numbers (N0, which includes zero); how do I get instead an object representing the classical definition (N1 a.k.a. N*, which excludes zero)?
http://en.wikipedia.org/wiki/Natural_number
sage: NN
Non negative integer semiring
If I want to make further set subtractions, how do I do so? What trade-offs might I encounter typically with such operations?
| | 3 | retagged |
Sage's global "NN" is the modern definition of the natural numbers (N0, which includes zero); how do I get instead an object representing the classical definition (N1 a.k.a. N*, which excludes zero)?
http://en.wikipedia.org/wiki/Natural_number
sage: NN
Non negative integer semiring
If I want to make further set subtractions, how do I do so? What trade-offs might I encounter typically with such operations?
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