249 questions

a basis for quotient module/vector space

• quotient_ring
• ideal
• LaurentPolynomial
• InfPolynomialRing

Polynomial ring indexed over an abelian group (magma).

• magma
• DefineVariables

Pb with unicode character

• unicode

Strange behavior of bool()

• analysis

metric perturbations on Sagemanifolds

• sagemanifolds

Can you specify an explicit curve by specifying its x,y points ?

• explicit
• curve
• interpolation
• Derivatives
• numerical_integral

minimization without constraints gives error for multiple dimension

• optimization

Problems with scipy's optimize

From one polynomial over an algebraic extension to several over Q.

• polynomials

Strange behaviour in simplifying a function

• analysis

Parallelizing symbolic matrix*vector computations for sparse matrices and vectors

• parallelization
• SparseMatrix
• sparse

1k

views

1

answer

no

votes

2020-05-27 20:07:37 +0200 rburing

Warning against a deprecated function

• programming

Toric Ideal of Point Configuration Yielding Whole Ring?

• discrete-geometry
• triangulation
• PointConfiguration
• toric-ideals

What does "hidden_function keyword" mean?

• valueerror
• hidden_keyword
• linear-algebra

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

• symbolic-expression

One step linear programming pivot

• linear-programming

Test for a valid entry in a matrix

• matrix

An algorithm on root systems' vectors "ValueError: too many values to unpack "

Root systems algorithm: "TypeError: 'str' object is not callable"

solving a matrix equation in the integers.

• MixedIntegerLinear
• linear-programming
• linear-algebra

"triangular" sliders when plotting with @interact ?

• interact
• 2Dplot
• 3D-plots

To give a name to an append list

• algebra

find maximum value of F

• max_symbolic
• expressions
• sage
• function

Extrinsic curvature of Riemannian submanifold: no basis found for computing the components

• sagemanifold
• submanifolds

Calimero effect in plot3d

• plot3d

1k

views

2

answers

3

votes

2020-12-12 03:14:15 +0200 Juanjo

Filling a hyperbolic polygon

• hyperbolic_geometry
• graphics

use type signature in functions for matrix and vector

• matrix

746

views

2

answers

1

vote

2020-12-17 12:41:03 +0200 Juanjo

minimize_constrained works for f(x,y)=x+y but not for f(x,y)=x

• confirmed_issue

How to arrange real and imaginary parts of a complex number

• complex-numbers
• real-part
• imaginary-part

638

views

1

answer

1

vote

2021-01-13 17:24:55 +0200 FrédéricC

How to compute in the Tensor Algebra $T(V)$ ?

• TensorProducts
• algebra
• universal-algebra
• Lie_algebra