439 questions

308

views

1

answer

no

votes

2024-03-17 10:10:16 +0100 rburing

running code twice generate error

• kernel
• reset

how display labels edges and color with dictionary? ​

• graph
• edge_labels
• edge_colors

Plot a 3D figure with different colors of a System of three Equations using SageMath

• system_of_equations

302

views

1

answer

no

votes

2024-01-11 17:01:06 +0100 Max Alekseyev

Unspecified function with some properties and substitution

• analysis

Vector as function from a finite set

• vector
• space

490

views

1

answer

1

vote

2024-01-01 09:56:56 +0100 rburing

How can I manipulate Clifford Algebra elements symbolically?

• clifford-algebra
• symbolic-expression
• coercion

How to collect the derivatives in an expression for a scalar field

• manifolds
• sagemanifolds
• collect

How to define a manifold for representing PDEs in vectorial form?

• manifolds
• pde

How to define a vector field over a chart?

• vector-fields

Wrong result for gradient in spherical coordinates [closed]

• sagemanifolds

400

views

1

answer

no

votes

2023-10-26 14:14:17 +0100 Max Alekseyev

Solving a system of equations over finite fields with integer coefficients

• finite-fields

219

views

1

answer

no

votes

2023-10-12 05:33:08 +0100 Max Alekseyev

Fundamental polynomials with Sage

• polynomials

762

views

1

answer

no

votes

2023-10-04 13:14:27 +0100 rburing

Column space of a matrix

• matrices
• columns

How can we binarize Reed Solomon Codes?

• coding_theory
• vectorspace
• subspace
• finite-fields
• Reed_Solomon

simple way solve equations form : y_1 = x_00*y_1 + x_01*y_2

• algebraic_equations
• solve

polyhedron pb

• polyhedron

Generating Gabidulin codes

2D Gaussian integrals

• limits
• definite-integral
• gaussian
• symbolic-integration

StreamPlot error "ndim" is not an attribute

• python
• sagemath
• streamplot
• ndim

Conditional sum

• calculus

Is there a function for negacyclic matrices?

• cyclic_matrix
• programming

How am I able to take the gradient of a symbolic function twice?

594

views

2

answers

1

vote

2023-01-24 14:19:14 +0100 rburing

Model of polynomial over $GF(2^n)$ as polynomials over $GF(2)$

• PolynomialRing
• binary

Unexpected results defining a scalar field

• vector_calculus

Rational quadratic form from invariants

• QuadraticForm
• algebra
• number_theory

Inverse matrix and basis of subspace

• inverse
• base

Delayed evaluation (equivalent to := in Mathematica)?

• delayed
• evaluation
• lambda

Calculating large symbolic determinants is too slow

• symbolic-matrix
• determinant
• speed_up

Roots of polynomials over a non-prime finite field in a given extension

• fixed_issue
• finite-fields
• roots

plot scattered data

• 2Dplot
• scatt