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2021-04-14 09:51:35 +0200 edited question Ring not recognized as a PID

Ring not recognized as a PID I need to work with finitely generated modules over a PID, which the localization at a prim

2021-04-14 08:55:26 +0200 edited answer Moving a shift entered result as a code in another file

By "this result" I assume you mean the one numbered Out[14] in the screen capture. There is no need for any extra pare

2021-04-14 08:51:27 +0200 commented question Moving a shift entered result as a code in another file

Also, reducing to a simpler case to get a simpler question is always a good idea.

2021-04-14 08:50:31 +0200 commented question Moving a shift entered result as a code in another file

If you capture only the useful zone, or crop to remove the grey area on the sides, the picture can be displayed bigger.

2021-04-14 08:50:21 +0200 answered a question Moving a shift entered result as a code in another file

By "this result" I assume you mean the one numbered Out[14] in the screen capture. There is no need for any extra pare

2021-04-14 08:37:23 +0200 edited question Moving a shift entered result as a code in another file

Moving a shift entered result as a code in another file So suppose I did tons of code and end up with this result. I

2021-04-14 00:43:22 +0200 commented answer Why `unable to convert (sin(h(x)), cos(h(x))) to a symbolic expression`?

Nice trick! Using SageManifolds might also help with such problems.

2021-04-13 23:27:02 +0200 commented answer Parametric plot doesn't work as expected

I'm wondering if there is a way to automate this kind of calculations One might walk the expression tree for each s

2021-04-13 21:33:07 +0200 commented answer Traversing sage's symbolic expression trees in python

Update. The corresponding manual entry is now at https://doc.sagemath.org/html/en/reference/calculus/sage/symbolic/exp

2021-04-13 21:15:53 +0200 commented answer Parametric plot doesn't work as expected

negative numbers inside the [square root] [...] I find it curious that you still get a picture I wonder whether t

2021-04-13 11:58:55 +0200 edited answer possible bug: kernel of ring homomorphism

This was a bug, fixed in the meantime at Sage Trac ticket 31367: bug in kernel of ring homomorphism of quotient rings

2021-04-13 11:56:19 +0200 edited answer possible bug: kernel of ring homomorphism

This was a bug, fixed in the meantime at Sage Trac ticket 31367: bug in kernel of ring homomorphism of quotient rings

2021-04-13 09:58:12 +0200 commented answer Installation fails at README step 5 : iMac under OSX 14.6

New SageMath macOS app: https://github.com/3-manifolds/Sage_macOS/releases

2021-04-13 01:21:56 +0200 commented answer How to load .sobj files into Jupyter Notebook

Using raw strings avoids having to escape backslashes. Instead of '\\users\\myusername\\list.sobj' one can write r'\use

2021-04-13 01:21:07 +0200 commented answer How to load .sobj files into Jupyter Notebook

You can use raw strings and avoid having to escape backslashes. Instead of '\\users\\myusername\\list.sobj' you can wri

2021-04-11 16:13:50 +0200 edited question Parametric plot doesn't work as expected

Parametric plot doesn't work as expected I'm working on some visualizations. In fact, I'd like to vizualize lines and cu

2021-04-11 16:01:59 +0200 answered a question Simplify factorials Question

Sage offers various ways to express the desired product, using factorial gamma falling factorial rising factorial prod

2021-04-09 17:40:39 +0200 commented answer RecursionError long lists

Nice. Accept your own answer to mark the question as solved.

2021-04-09 17:40:06 +0200 commented answer RecursionError long lists

You can accept your own answer to mark the question as solved.

2021-04-09 16:56:14 +0200 commented question Old Sage binaries

Binaries for SageMath 8.8 and 8.9 are still around, I would try those with Fredrik Strömberg's psage which is the most u

2021-04-09 10:19:39 +0200 edited question Question about displaying graph

Question about displaying graph I need to show comments which explain the colors used in a graph. As the display paramet

2021-04-09 10:01:06 +0200 commented question RecursionError long lists

Providing a toy example with a few simplices instead of 10,000 would make the question concrete.

2021-04-09 01:25:48 +0200 commented question Old Sage binaries

By PSage do you mean "purple sage" and are you getting it from https://github.com/fredstro/psage or from some other

2021-04-08 16:22:20 +0200 commented question Question about displaying graph

Typing [ graph text ] in the search box at the top of Ask Sage reveals: Ask Sage question 54280: Add arbitrary text to

2021-04-08 16:19:57 +0200 commented question Question about displaying graph

Ideally, as always, provide some concrete input to play with.

2021-04-08 09:36:27 +0200 commented question Error comment: it seems that the kernel has crashed

This is tracked at Sage-Windows issue 57: Plotting kills Sagemath (on some machines) To help solve this issue, can y

2021-04-07 15:04:34 +0200 edited question Maxima wants to know whether %k1 is positive or negative

Maxima wants to know whether %k1 is positve or negative Trying to solve a differential equation in Sage: sage: de = -d

2021-04-07 15:04:21 +0200 edited question Maxima wants to know whether %k1 is positive or negative

Maxima wants to know whether %k1 is positve or negative Trying to solve a differential equation in Sage: sage: de = -d

2021-04-06 10:17:51 +0200 commented question X/(1-q) Plethystic Substitution

Ideally, provide enough code for others to reproduce what you did.

2021-04-05 23:11:28 +0200 answered a question How to convert linear system to matrix form

To complement @ortollj's answer which explains how to input the matrix by hand and solve it, here we explain how to ente

2021-04-05 15:42:48 +0200 commented question Evaluating a form field at a point on vectors

Also asked at Stack Overflow question 66934629: Evaluating a form field at a point on vectors in SageMath.

2021-04-05 10:44:35 +0200 edited question How to convert linear system to matrix form

How to convert linear equation to matrix form Hi, I am new to SageMath, need help on convert a linear system into matrix

2021-04-05 10:44:27 +0200 edited question How to convert linear system to matrix form

How to convert linear equation to matrix form Hi, I am new to SageMath, need help on convert a linear system into matrix

2021-04-05 10:44:01 +0200 edited question How to convert linear system to matrix form

How to convert linear equation to matrix form Hi, I am new to SageMath, need help on convert a linear equation into matr

2021-04-05 10:43:43 +0200 edited question How to convert linear system to matrix form

How to convert linear equation to matrix form Hi, I am new to SageMath, need help on convert a linear equation into matr

2021-04-04 20:11:34 +0200 edited answer Finite field extension

This updates the answer by @achrzesz, as coeffs is no longer available. The polynomial method of a number field element

2021-04-04 20:07:50 +0200 answered a question prime field element constructor does not accept lists of size one

Prime fields are a very special case of finite fields, so unsurprisingly there are major implementation differences. Th

2021-04-04 19:43:50 +0200 edited question Finite field extension

Finite Field Extension How can one recover the coefficients of the polynomial representation of a number field element w

2021-04-04 19:43:34 +0200 edited question Finite field extension

Finite Field Extension How can one recover the coefficients of the polynomial representation of a number field element w

2021-04-04 19:39:21 +0200 answered a question Finite field extension

This updates the answer by @achrzesz, as coeffs is no longer available. The polynomial method of a number field element

2021-04-04 15:48:54 +0200 received badge  Nice Answer (source)
2021-04-04 09:44:29 +0200 edited question Problems with sagetex

Problems with sagetex Texmaker does not give me the required PDF file although in Sage it is written: Sage processing c

2021-04-03 23:38:43 +0200 answered a question Evaluating a form field at a point on vectors

Almost there. Evaluate the 2-form at point p on vectors based at p. sage: T = E.tangent_space(point) sage: T Tangent s

2021-04-03 16:46:21 +0200 edited question Coordinate charts, functions of one coordinate as bounds of another(?)

Coordinate charts, functions of one coordinate as bounds of another(?) I have a Manifold (4,M) and its coordinate chart

2021-04-02 08:36:34 +0200 commented question How we can solve a difference equations in Sagemath. Please suggest some references for it.

Tip: add an example.

2021-04-01 11:14:49 +0200 commented answer Why am I getting a type error when I attempt to take the projective closure of this intersection?

I can confirm this works for me in Sage 9.2 and Sage 9.3.rc0: sage: A.<x, y, w> = AffineSpace(QQ, 3) sage: P.<

2021-04-01 11:10:42 +0200 commented question Is there a way to specify that `\sqrt{}`s should be avoided in favor of exponents when using the `latex()` function?

Welcome to Ask Sage! Thank you for your question!

2021-04-01 01:27:00 +0200 received badge  Nice Answer (source)
2021-03-31 10:15:10 +0200 edited answer How to find the degree of a polynomial

Polynomials (and symbolic expressions) have a degree method. Beware that even after defining R as in the question, x is

2021-03-31 09:14:19 +0200 answered a question How to find the degree of a polynomial

Unless you declare x as the indeterminate in R, it is still a "symbolic variable" in the "symbolic ring". sage: x.pare