328 questions

if we know that the vectors are dependant i need to determine the relation between v9 = vector([0, 0, -2, 0, 4, -2, 12, 8, -18]) and the following vectors

How to define an element in a space of Modular Forms and express it as a linear combination of basis elements?

• modular_forms

Quaternions Missing Important Functionality?

• quaternion
• clifford-algebra
• vector
• matrix
• symbolic

Special linear group of finite ring is finite

• groups
• Subgroups
• ideals

Finding integer solutions to systems of polynomial equations

• polynomials
• solve
• ring
• variable

checking isomorphism for weighted bipartite graph

• IsIsomorphic
• weighted-graph
• weight
• bipartite
• graph_theory

Residue calculation in Sagemath

• Residue
• algebraic-structures
• polynomials
• complex-analysis
• computations

No able to get the results from the last segment

• interact
• Defining
• special_functions

Suggestions for improving speed

• dynamics
• vector
• field
• animation

Help with unstable code

• matrices
• circle
• complex-analysis

3k

views

2

answers

no

votes

2017-04-24 10:37:42 +0100 ndomes

How to find multiple roots?

• find_root

Solving a fifth degree polynomial

• polynomials

Error in computation of eigenvalues in Sage

Comparing Sage and Mathematica for an Introductory Course

• education
• mathematica
• interactivity

Infinite polynomial ring with several index

• InfPolynomialRing

Computing the inverse of a function with parameter(s)

• analysis

816

views

2

answers

1

vote

2013-02-23 13:46:34 +0100 fidbc

How to get an arbitrary orientation of a graph.

• graph
• graph-theory
• cycle
• loops
• digraph

TypeError: x0 is not a valid variable trying to solve equation

Solving 3rd degree Diophantine equation in Sage

• diophantine

How to find a minimum number of switch presses to shut down all lamps?

• optimization
• finite-fields

Get results of solve

Plotting families (depending on integer parameter(s)) of curvilinear coordinate and isolevel lines and surfaces, resp. for functional and parametric surfaces, and for 3-variate scalar fields and volume deformations in 3D

• curvilinear
• coordinates

2k

views

2

answers

no

votes

2012-12-04 12:22:47 +0100 ndomes

Can I display a list of equations aligned like latex eqnarray?

• notebook
• display
• equations
• aligned
• eqnarray

959

views

2

answers

1

vote

2020-03-19 02:07:57 +0100 Juanjo

Trigonometric equation solving

366

views

2

answers

1

vote

2022-07-13 20:44:32 +0100 Juanjo

Parametric surface with the range of one variable depending on the other variable

• parametric_plot3d

Generating Gabidulin codes

Is there a sage command to compute complex numbers?

• complex
• complex-numbers

Plot the intersection of two surfaces

• plot3d

1k

views

2

answers

3

votes

2011-09-27 23:01:41 +0100 Mike Hansen

Find polynomial in terms of ideal

• polynomials
• ideal
• basis

How to solve a Bernoulli Diff EQ?

• differential
• differential_eqns
• Bernoulli