249 questions

442

views

1

answer

no

votes

2022-01-23 23:12:19 +0200 Max Alekseyev

Symbolically evaluate abstract cryptographic operations

• cryptography
• encryption
• finite-field
• symbolic

Inverse matrix and basis of subspace

• inverse
• base

Efficiently computing the distance from a point to a set

• distance
• vector_field
• dynamics

solving a matrix equation in the integers.

• MixedIntegerLinear
• linear-programming
• linear-algebra

Is there a function for negacyclic matrices?

• cyclic_matrix
• programming

298

views

no

answers

no

votes

2024-04-22 21:53:55 +0200 Max Alekseyev

Finding minimum sub-algebra that contains a set

• linear-algebra
• vectorspace
• sagemath

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

• system_of_equations

Test for a valid entry in a matrix

• matrix

How can you import C++ code into a Jupyter notebook?

• C++
• python
• Jupyter
• function-definition

minimize_constrained for a one dimensional function

• minimize_constrained

derivative of multivariate equation with nested sum

• function
• calculus
• derivative
• sum

Information-set decoding(ISD) for linear codes

• ISD
• mceliece
• decoding

How to find quartile 1 and 3 in sagemath

• quartile

quadratic form

• QuadraticForm

Extracting a matrix from linear expressions

• matrix
• coefficient

3k

views

3

answers

no

votes

2012-04-10 10:55:54 +0200 DSM

Define function in GF(q)

• finitefield
• polynomial
• trace

Running a for cycle in parallel

• parallelization
• for-loop
• optimization

398

views

1

answer

no

votes

2024-03-19 16:41:36 +0200 FrédéricC

Error in the revolution plot

• 3D-plots
• revolution_plot3d
• 3Dvector

Strange behaviour in simplifying a function

• analysis

Kernel dies when working with hyperplane arrangement

• geometry

Strange behavior of bool()

• analysis

Pb with unicode character

• unicode

more complicated data types to/from sage from/to C functions

• C
• sage
• cython
• data
• type

Sum a list of vectors

• list
• vector
• summation

768

views

1

answer

no

votes

2019-09-08 19:12:37 +0200 rburing

How to evaluate polynomial in a polynomial ring at a particular value

• function

runs in Octave (tested) but not SageMathCloud (errors)

• Octave
• cloud.sagemath

Problems with scipy's optimize

Solving Ax = 0 (non-trivially)

• matrix
• equation-system

error in elliptic curve scalar multiplication code

How to define a vector field over a chart?

• vector-fields