2021-07-23 23:18:19 +0200 | received badge | ● Nice Answer (source) |

2021-07-23 20:18:08 +0200 | answered a question | Coefficient of a single variable polynomial over a modular ring Does this solve your problem?: R.<x>=IntegerModRing(15)[] f=1+x^2+4*x^6 coeffs=(f.coefficients(sparse=False)) sho |

2021-07-20 17:23:27 +0200 | received badge | ● Nice Answer (source) |

2021-07-20 09:52:26 +0200 | answered a question | Solving equations in SageMath You can solve for mu1: var('x, mu1, mu2, sigma') result=solve(exp((0.5/sigma)*(x-mu1)^2)==exp((0.5/sigma)*(x-mu2)^2),mu |

2021-06-10 21:24:18 +0200 | commented question | assume causes a solving failure Cyrille, I think the question is still valid because if we rule out the assumption line, the code yields an answer with |

2021-06-10 21:23:32 +0200 | commented question | assume causes a solving failure I think the question is still valid because if we rule out the assumption line, the code yields an answer with a free va |

2021-06-09 19:09:58 +0200 | commented question | Rewrite log in exponents I do not know if this would be helpful for your question but .canonicalize_radical() solves the problem in your example: |

2021-06-09 19:08:50 +0200 | commented question | Rewrite log in exponents I do not know if this would be helpful for your question but .canonicalize_radical() solves the problem in your example: |

2021-06-08 13:05:18 +0200 | commented question | Beginner problem solving equations. Try using .rhs() with brackets. [0] gives you the first element of an array. var('x, p_r, p_n, t, beta, delta') U_ow_n |

2021-06-02 09:56:36 +0200 | commented question | why ECL says: Error executing code in Maxima: expt: undefined: 0 to a negative exponent Your first example yields integrate(arcsin(x/a)^(3/2)/sqrt(a^2 - x^2), x) not a result. Do you need to specify the me |

2021-06-01 16:36:40 +0200 | answered a question | Plese help. How to solve this and similar differential equations Your first example: y=function('y')(x) desolve((4*x^2)*diff(y,x,x)+12*x*diff(y,x)+3*y==0,y,x) |

2021-05-30 11:53:58 +0200 | answered a question | Symbolic expression not scriptable in Solve Does changing x to X solve your problem? Namely, sol = [solve(Ineq[i][0], X[1]) for i in range(len(Ineq))] |

2021-05-30 10:20:20 +0200 | answered a question | Change source code and rebuild Sage in Windows As far as I know, the Windows version of SageMath uses Cygwin. "Build Sage from source in Cygwin" section of https://wik |

2021-05-27 13:02:29 +0200 | commented answer | syntaxError exception using integrate with fricas Can a try-except solve your problem: f(x)=2*x+x^2*2^(1/2) try: res=integrate(f(x),x, algorithm="fricas") except: |

2021-05-27 12:41:27 +0200 | answered a question | syntaxError exception using integrate with fricas Try to replace the term 2^(1/2) by a variable a: var('x,a') integrate(2*x+x^2*a,x, algorithm="fricas") to obtain 1/3 |

2021-04-08 10:25:26 +0200 | commented question | Maxima wants to know whether %k1 is positive or negative Then what is the problem with the following code? var('G,M') y=function('y')(x) assume(G*M>0) de = -diff(y, x, 2) |

2021-04-08 10:25:13 +0200 | received badge | ● Commentator |

2021-04-08 10:25:13 +0200 | commented question | Maxima wants to know whether %k1 is positive or negative Then what is the problem with the following code? var('G,M') y=function('y')(x) assume(GM>0) de = -diff(y, x, 2) - G |

2021-04-08 09:24:12 +0200 | commented question | Maxima wants to know whether %k1 is positive or negative I also think that it is a bug. SageMath does not send the assumptions to Maxima solver. |

2021-03-25 08:14:33 +0200 | asked a question | More system resources for SageMath More system resources for SageMath I am using SageMath under Windows 10 with the jupyter notebook in Firefox. I have ins |

2021-02-28 07:34:47 +0200 | commented question | Ask Sagemath has a new home ! Yesterday, I have seen a rendering-related issue in the subject line of the question https://ask.sagemath.org/question/5 |

2021-01-01 18:09:58 +0200 | received badge | ● Nice Question (source) |

2020-12-12 07:56:05 +0200 | received badge | ● Enthusiast |

2020-12-03 08:46:47 +0200 | commented question | Why won't sage (maxima) factor the symbolic expression 2*a3 - 2*a6? Just an information: I tried with Maxima (version 19.01.2x) itself (not in SageMath) and it factorizes correctly: Enter: factor(2 * a3 - 2 * a6); The output is: -2*(a6-a3) |

2020-11-17 06:27:56 +0200 | commented question | Unknown installation error in Windows SageMath started using Python 3 since its version 9.0. I hope you can solve this issue and use the latest versions but if you need to use SageMath urgently, you may want to try earlier versions. |

2020-11-16 07:21:07 +0200 | commented question | Unknown installation error in Windows Using the latest release is preferable but in this case, I would try with an earlier version of SageMath. |

2020-11-15 11:27:58 +0200 | commented question | How to solve a system of 9 equations simultaneously using Sage Did you try the methods given in https://doc.sagemath.org/html/en/tuto... ? If yes, we need more details. |

2020-11-10 22:44:08 +0200 | received badge | ● Student (source) |

2020-11-10 08:38:59 +0200 | commented answer | How does one use Sage under Windows 10? Jupyter environment is already installed with SageMath. If you installed SageMath 9.1, just click on "SageMath 9.1 Notebook" and it opens a Jupyter session in your internet browser. On the right, you will see "New". Press on it and select SageMath 9.1. Now you can run your commands. Also see this. |

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2020-11-09 08:11:39 +0200 | commented question | Use .sagews or .sws files with Sage in Windows 10 Please see https://ask.sagemath.org/question/401... first. |

2020-11-09 08:03:50 +0200 | received badge | ● Teacher (source) |

2020-11-09 07:12:30 +0200 | received badge | ● Editor (source) |

2020-11-09 07:07:11 +0200 | answered a question | How does one use Sage under Windows 10? A native binary installer for Windows is available. Please visit the SageMath page and follow the download link. Once installed, click on "SageMath X.x Notebook" and use the program in the Jupyter environment. This is the standard way of using. |

2020-11-09 00:28:23 +0200 | commented question | How to solve Second order Non linear differential equations? Did you try the methods given in https://doc.sagemath.org/html/en/prep/Quickstarts/Differential-Equations.html (this page) ? |

2020-11-09 00:28:23 +0200 | asked a question | A frontend with 2D input and palettes Do we have a frontend that supports two-dimensional input with or without command palettes? Like declaring a fraction as $\frac{a+b}{b+c}$ instead of (a+b)/(b+c), or writing an integral by choosing the symbol from the palette and filling in the dummy arguments? I have no complaints with Jupyter but this kind of frontend would be very useful especially for non-programmers. |

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