7,751 questions

upgrade to sage 8.6

How to get rid of the Error Message for calling a text file in SageMath

How to construct the following matrix

elliptic curve arithmetic without inversion

• Elliptic-curves
• inverse
• arithmetic

132

views

1

answer

1

vote

2019-03-14 09:25:29 -0500 rburing

Free nilpotent Lie algebra of step 3 with 11 generators

• liealgebra
• confirmed_bug

43

views

1

answer

1

vote

2019-03-13 12:39:43 -0500 rburing

multiplicity of a point in a scheme

• subscheme
• multiplicity
• confirmed_bug

Coefficients of partial derivatives

• sagemanifolds
• derivative

Number of neighbors of a set of vertices in a graph

• graph-theory

Generating plane triangulations

• graph-theory
• planar-graph
• triangulation

Solved: Why does integrate(psi(y)*f(y),y) return an error but integrate(psi(t,y)*f(t,y),y) works?

• symbolic-integration
• convolution
• problem
• Integrate

28

views

1

answer

no

votes

2019-03-12 04:38:29 -0500 rburing

How to compute the sums of squares of elements of a quotient ring?

• finite-field
• function-field

35

views

1

answer

no

votes

2019-03-11 21:06:20 -0500 Juanjo

dimensions of image

• Poset
• dimensions
• graphs
• show

How to change color AFTER calling "plot"?

• color
• graphics

Change dimensions of graph

• dimensions
• Poset
• graphs
• show

Evaluating a derivative of an unknown function

• derivative
• evaluation

Using CPLEX via SAGE when it's package installed

• CPLEX
• package
• Debian

How to change sqrt(5) to decimal?

• sqrt

40

views

1

answer

1

vote

2019-03-10 10:56:21 -0500 FrédéricC

Obtaining a poset from Posets(n)

38

views

1

answer

2

votes

2019-03-09 12:21:36 -0500 FrédéricC

How can I detect failure of analytical integration?

• analytical
• integral
• failure
• dectection

TypeError: cannot solve differential equation

• desolve_system
• TypeError

can anyone help me solve this problem? (substitution)

87

views

1

answer

1

vote

2019-03-09 05:40:30 -0500 rburing

transformation matrix for variable matrix of given jordan type

• matrices

Save to GDrive

• cocalc

displaying png in sage-8.1.ova VirtualBox notebook

• png
• display
• OVA
• virtualbox

How to define $\mathbb{Q}_p(\sqrt{5})$ and $\mathbb{Q}_p (\sqrt{5} \sqrt{3})$ and find their valuation rings for $p=7$?

• valuation-rings

Factor a solve output

• factor
• solve
• type

Why do I need to use real or real() some of the times?

59

views

1

answer

1

vote

2019-03-07 18:34:02 -0500 Juanjo

Solving trigonometric equations in interval.

46

views

1

answer

no

votes

2019-03-07 13:21:40 -0500 FrédéricC

Is there a package for sagecell ?

• sagecell
• install

41

views

1

answer

1

vote

2019-03-07 10:23:04 -0500 rburing

Cannot solve differential equation (Lane-Emden equation) numerically

• difference-equation
• numerically