Comment by tdstephens3 for Hello,Here is a possibilitysage: R.<a,b> =...
What about the efficiency of each/any of the above methods? In particular, is unpacking the dictionary quicker than unpacking the list?
View ArticleComment by niles for Hello,Here is a possibilitysage: R.<a,b> =...
And for the many-variable case, you can use `d = dict(zip(R.gens(),v))` and `h.subs(d)` (I think the post above forgot to mention this last part). If v really has to be a vector, you could probably...
View ArticleComment by ccanonc for Hello,Here is a possibilitysage: R.<a,b> =...
Digression: flatten() is useful in related use-cases. The max_level keyword argument is very useful when there is multiple nesting.
View ArticleComment by niles for Hello,Here is a possibilitysage: R.<a,b> =...
vdelecroix: I think you have to pass the dictionary object to `subs()`
View ArticleComment by vdelecroix for Hello,Here is a possibilitysage: R.<a,b> =...
Niles: for me P.subs(a=5,b=6) does not work for an element of a polynomial ring (but does for symbolic expressions).
View ArticleAnswer by vdelecroix for I can't find any support documentation on this, but...
Hello, Here is a possibility sage: R. = PolynomialRing(QQ,['a','b']) sage: R Multivariate Polynomial Ring in a, b over Rational Field sage: P = a^3*b^5+3*a^2+2*b^4 sage: P sage: P(5,6) # standard way...
View ArticleComment by Evgeny for I can't find any support documentation on this, but I'm...
if you select a span of text and click "code formatting" button - the selection will be "backticked" and as a result displayed with a fixed width font.
View ArticleComment by niles for I can't find any support documentation on this, but I'm...
you can put <pre> ... </pre> around the code block to make it more readable (prevent markdown formatting)
View ArticleComment by Evgeny for I can't find any support documentation on this, but I'm...
the same effect has selecting a block of text and clicking the editor button with zeroes and ones.
View ArticleHow do I Pass a tuple as an argument for a multivariate polynomial?
I can't find any support documentation on this, but I'm sure it must be possible. To give some context, I'm working on a module for invariant theory which allows for computing matrices acting on...
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