249 questions

1k

views

1

answer

no

votes

2020-05-27 20:07:37 +0100 rburing

Warning against a deprecated function

• programming

using sage functions with data from octave

• histogram
• Octave

Strange behaviour in simplifying a function

• analysis

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

• polynomials

Problems with scipy's optimize

minimization without constraints gives error for multiple dimension

• optimization

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

• explicit
• curve
• interpolation
• Derivatives
• numerical_integral

metric perturbations on Sagemanifolds

• sagemanifolds

Projection along affine hull

• polyhedra
• projection

Strange behavior of bool()

• analysis

Pb with unicode character

• unicode

Polynomial ring indexed over an abelian group (magma).

• magma
• DefineVariables

a basis for quotient module/vector space

• quotient_ring
• ideal
• LaurentPolynomial
• InfPolynomialRing

1k

views

1

answer

1

vote

2020-03-05 16:05:38 +0100 Juanjo

plotting a Surface gradient

for-loop not computing the values

• for-loop

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

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

790

views

2

answers

2

votes

2020-02-05 00:34:29 +0100 rburing

How are symbolic derivatives composed in quaternions?

• quaternion
• calculus

how to get y component of bezier control points?

• Bezier
• Bernstein
• python
• script

Error while assigning iteration on variable S[i,m-1]

• loop
• iteration

linear algebra derivative expressions

• symbolic
• vector_calculus
• sympy

weird behavior of show command

• show
• contour_plot

680

views

1

answer

no

votes

2019-09-08 19:12:37 +0100 rburing

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

• function

830

views

1

answer

2

votes

2019-09-01 22:09:48 +0100 rburing

Vector valued function: unable to convert to symbolic expression

• vector-fields
• symbolic-expression

539

views

1

answer

1

vote

2019-07-29 15:23:36 +0100 FrédéricC

Extremal Rays of a Cone

• linear-algebra
• cones
• linear-programming

377

views

1

answer

1

vote

2019-06-27 03:29:28 +0100 Juanjo

3-d bezier-path made thick

• 3D-plots

524

views

1

answer

1

vote

2019-06-08 11:54:44 +0100 Juanjo

positive values of polynomials

• polynomial
• Optimisation

General solution for a matrix

• matrix

Algebra of functions f:Z_3 -> R

• algebra
• system
• of
• polynomials

jsmol problem in Sagemath/Jupyter notebooks

Vector field: how to make arrows fine? (plot2d)

• plot2d
• arrow