Timeline for How to reformulate an expression by grouping similar terms into new variables [duplicate]
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
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| Nov 24, 2016 at 15:28 | history | closed |
Szabolcs MarcoB Feyre m_goldberg vapor |
Duplicate of Find subexpression to minimize leafcount after replacment with temporary variable | |
| Nov 23, 2016 at 13:49 | review | Close votes | |||
| Nov 24, 2016 at 15:28 | |||||
| Nov 23, 2016 at 13:36 | vote | accept | William Ledoux | ||
| Nov 23, 2016 at 13:30 | comment | added | Szabolcs | mathematica.stackexchange.com/questions/26527/… | |
| Nov 23, 2016 at 13:25 | answer | added | Szabolcs | timeline score: 4 | |
| Nov 23, 2016 at 13:13 | comment | added | Szabolcs |
There's Experimental`OptimizeExpression, which does something like what you are asking for, but it's really meant for minimizing the numberr of arithmetic operations needed for calculating something (performance optimization), and in practice it doesn't turn out to be useful for symbolic computation tasks like yours. It's better to avoid substituting in too many terms from the beginning ...
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| Nov 23, 2016 at 13:12 | comment | added | Szabolcs | I don't think there's a general way, but there are several questions here applying to specific situations: mathematica.stackexchange.com/q/894/12 mathematica.stackexchange.com/q/28773/12 mathematica.stackexchange.com/q/11178/12 and many more. Typical useful functions: Eliminate, GroebnerBasis, PolynomialReduce. | |
| Nov 23, 2016 at 13:06 | review | First posts | |||
| Nov 23, 2016 at 13:08 | |||||
| Nov 23, 2016 at 13:06 | history | asked | William Ledoux | CC BY-SA 3.0 |