249 questions

1k

views

2

answers

1

vote

2021-03-27 01:06:21 +0100 Juanjo

How to show that two given functions are linearly dependent

• independence
• dependence
• differential_eqns

585

views

2

answers

1

vote

2021-03-26 23:55:46 +0100 Juanjo

How to find second order differential equation from general solution?

• differential_eqns

Elementwise functions for deep learning

• elementwise
• softmax
• deep-learning
• sigmoid

Customizing sage objects latex behaviour

• latex
• Jupyter
• Configuration
• typesetting

Integer programming bi-indexed variables.

• integer
• programming

Systematically outputting sign vectors of restricted hyperplane arrangement

• Hyperplane
• subspace

prove an identity for any integer

• symbolic
• symbolic-expression
• symbolic-variables
• combinatorics

Divergence of inverse square

• divergence
• dirac_delta

vector_field.apply_map before and after vector.display (weird behaviour)

• vector_field
• apply_map
• display

"Affine diagonalization algorithm" in n-dimensions?

• algorithm
• diagonalize
• Implementation

How show vector or matrix in legend label of plot in latex?

• legend
• label
• 2Dplot
• latex
• plot

527

views

1

answer

1

vote

2021-01-13 17:24:55 +0100 FrédéricC

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

• TensorProducts
• algebra
• universal-algebra
• Lie_algebra

How to arrange real and imaginary parts of a complex number

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

653

views

2

answers

1

vote

2020-12-17 12:41:03 +0100 Juanjo

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

• confirmed_issue

1k

views

2

answers

3

votes

2020-12-12 03:14:15 +0100 Juanjo

Filling a hyperbolic polygon

• hyperbolic_geometry
• graphics

use type signature in functions for matrix and vector

• matrix

Calimero effect in plot3d

• plot3d

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

• sagemanifold
• submanifolds

find maximum value of F

• max_symbolic
• expressions
• sage
• function

To give a name to an append list

• algebra

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

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

"triangular" sliders when plotting with @interact ?

• interact
• 2Dplot
• 3D-plots

solving a matrix equation in the integers.

• MixedIntegerLinear
• linear-programming
• linear-algebra

Test for a valid entry in a matrix

• matrix

One step linear programming pivot

• linear-programming

Plotting question

• plot
• complex

What does "hidden_function keyword" mean?

• valueerror
• hidden_keyword
• linear-algebra

Toric Ideal of Point Configuration Yielding Whole Ring?

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

Parallelizing symbolic matrix*vector computations for sparse matrices and vectors

• parallelization
• SparseMatrix
• sparse