Timeline for Conditions for real roots of a cubic polynomial with complicated, yet constant, parameter values
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Nov 21, 2015 at 0:42 | vote | accept | boschbird | ||
| Nov 21, 2015 at 0:41 | comment | added | boschbird | Great thank you very much | |
| Nov 20, 2015 at 23:33 | comment | added | Daniel Lichtblau |
It is used in the output inside Root objects. These parametrize roots to polynomials and in order to do so one must have a notion of the polynomial "variable". Rather than use some internal name we opted to cast these as "pure functions" (and that has some uses for reconstructing polynomials later if one wants to do that). Anyway, the gist is that pure functions can be written in Mathematica using the # form to get anonymous variables.
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| Nov 20, 2015 at 23:04 | comment | added | boschbird | Thanks very much. I have looked up a lot of documentation on '#' and I still don't really understand its meaning. Is there a clear way to explain what the hash symbol in this context represents? | |
| Nov 17, 2015 at 18:44 | history | answered | Daniel Lichtblau | CC BY-SA 3.0 |