249 questions

Inverse matrix and basis of subspace

• inverse
• base

Calculating large symbolic determinants is too slow

• symbolic-matrix
• determinant
• speed_up

plot scattered data

• 2Dplot
• scatt

How to speed up this code

• programming
• matrices

2k

views

3

answers

1

vote

2022-10-28 21:51:36 +0100 Max Alekseyev

solve_mod() takes long time and no result return when computing big numbers

• solve_mod
• multiple
• variables
• equation

514

views

1

answer

no

votes

2022-10-05 17:58:03 +0100 Max Alekseyev

Can't find error in my code

• programming
• matrices

755

views

no

answers

1

vote

2022-09-11 08:37:47 +0100 FrédéricC

Tropical Geometry

• AlgebraicGeometry
• combinatorics

Writing a matrix as a sum of matrices

• matrix
• sum
• partition

How to set a symbolic variable to square to zero?

• symbolic-variables
• simplicial
• differential
• nilpotent-element
• dold-kan

Solving Ax = 0 (non-trivially)

• matrix
• equation-system

2k

views

1

answer

2

votes

2022-06-13 00:55:59 +0100 Max Alekseyev

Sage crash when computing variety for an ideal with many variables

• variety
• ideal
• crash

1k

views

1

answer

no

votes

2022-06-07 12:23:08 +0100 Sébastien Palcoux

Fastest way to solve non-negative linear diophantine equations

• quick
• diophantine
• linear_equations
• positive
• partition

Monte_carlo Integration and Gauss coil formula

• numerical
• integration
• monte-carlo

Equation for hyperplane of a reflection - Try to do TODO on reflection group sage page

• coxetergroup
• Hyperplane
• linear_algebra
• linear_equations

363

views

1

answer

no

votes

2022-01-23 23:12:19 +0100 Max Alekseyev

Symbolically evaluate abstract cryptographic operations

• cryptography
• encryption
• finite-field
• symbolic

Tubular surface around curve

full metric transform

• Methods
• sagemanifolds

Evaluating gradient of numerically approximated function

• numerical
• integral
• field
• vector
• gradient

support() and coefficients() in combinatorial free modules

• CombFreeModule
• CyclotomicField
• kernel

How to add two vectors in polar coordinates

• vectors
• cylindrical
• coordinates
• polar

enriched contour plot

• contour_plot
• points

433

views

1

answer

1

vote

2021-07-22 19:49:55 +0100 John Palmieri

Defining vector partition functions in sage

• partitions

Gradient (nabla)

differential equation

• diffequation
• graphics
• constant

Function which works with a vector define from outside not from inside

• vector

Performance of PolynomialRing evaluation

• performance
• polynomial
• ring
• evaluation

A certain polyhedron-related computation: any way to get it quicker?

• polyhedra
• computation_time

How to define functions with varying number of variables

• symbolic
• function
• definition
• substitution

Running a for cycle in parallel

• parallelization
• for-loop
• optimization

Why `unable to convert (sin(h(x)), cos(h(x))) to a symbolic expression`?

• symbolic-expression