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84
questions
Tagged
sagemanifolds
×
506
views
1
answer
no
votes
2017-03-02 22:34:58 +0200
eric_g
Covariant Derivative gives Error, why? (SAGE 7.5.1)
sagemanifolds
connection
symbolic_issue
270
views
1
answer
no
votes
2017-04-01 11:04:00 +0200
eric_g
weird behavior of set and uniq
sagemanifolds
coordinate
symbolic
expression
291
views
1
answer
no
votes
2017-07-15 18:07:48 +0200
dan_fulea
Problem regarding user input in Sage manifolds
input
sagemanifolds
263
views
1
answer
no
votes
2018-03-08 18:57:24 +0200
Richard_L
Misusing sage.manifolds?
sagemanifolds
161
views
no
answers
no
votes
2018-10-19 03:12:59 +0200
PPLeduc
Can SAGE generate embedded Kerr spacetime dynamic diagrams?
sagemanifolds
314
views
1
answer
no
votes
2018-11-22 10:30:47 +0200
Dox
Assignation of components of a differential form (or multivector field) in sagemanifold
sagemanifold
sagemanifolds
tensor
differential_form
524
views
1
answer
no
votes
2019-04-12 20:45:10 +0200
eric_g
multiprocessing.Pool does not work
sagemanifolds
multiprocessing
mac
987
views
2
answers
no
votes
2019-06-27 15:08:41 +0200
eric_g
(Update) How to change/set variables?
matrices
differential_form
sagemanifolds
exponentiation
DefineVariables
340
views
1
answer
no
votes
2019-08-28 13:24:23 +0200
eric_g
How to set a metric tensor inverse?
sagemanifolds
riemann
metric
343
views
1
answer
no
votes
2019-10-11 00:53:12 +0200
JGC
Inverse of the transition map on a Manifold doesn't hold
manifolds
sagemanifolds
79
views
no
answers
no
votes
2020-08-25 22:12:29 +0200
danielvolinski
Error when I had some show commands
sagemanifolds
220
views
1
answer
no
votes
2020-09-05 14:02:29 +0200
eric_g
Typo in Sagemanifolds worksheet ? [closed]
sagemanifolds
Kerr
210
views
1
answer
no
votes
2020-11-07 16:25:46 +0200
eric_g
Why does manifold not have a volume form?
sagemanifolds
210
views
1
answer
no
votes
2020-12-04 16:55:46 +0200
slelievre
manifolds: antisymmetrize a tensor field creates a vector field instead of a tensor field [closed]
sagemanifolds
antisymmetrize
214
views
1
answer
no
votes
2021-02-02 08:59:18 +0200
eric_g
Displaying all symbolic expression with ExpressionNice
sagemanifolds
symbolic-expression
display
282
views
1
answer
no
votes
2021-02-02 08:50:57 +0200
eric_g
latex_name and derivatives in sagemanifolds
sagemanifolds
latex_name
derivative
143
views
no
answers
no
votes
2021-04-12 06:19:54 +0200
perfectly_odd
Is there a way to compute the "correct" distributional answer, -4*pi*dirac_delta(r), as the Laplacian of 1/r (in spherical coordinates on Euclidean space)?
manifolds
sagemanifolds
dirac_delta
185
views
no
answers
no
votes
2022-05-27 08:57:45 +0200
Bubbz
Coordinate chart restriction raising a floating-point-overflow error
sagemanifolds
coordinates
floating_point
OverflowError
110
views
1
answer
no
votes
2022-08-28 22:02:29 +0200
Sébastien
Manifold not defined
sagemanifolds
117
views
1
answer
no
votes
2023-03-09 01:08:52 +0200
Florentin Jaffredo
Switching coordinate charts mid-integration with solve_across_charts
sagemanifolds
integrated_geodesic
geodesics
coordinates
112
views
1
answer
no
votes
2023-08-31 10:17:12 +0200
eric_g
Covariant derivative
sagemanifolds
connection
174
views
1
answer
no
votes
2023-11-15 15:39:15 +0200
eric_g
[SageManifolds] Error : Black hole rendering with SageMath
sagemanifolds
cocalc
184
views
1
answer
no
votes
2023-11-15 15:06:14 +0200
eric_g
[CoCalc] [SageManifolds] Error : Black hole rendering with SageMath 2
sagemanifolds
cocalc
210
views
1
answer
no
votes
2023-11-21 11:22:35 +0200
eric_g
[CoCalc][SageManifolds] Error : Black hole rendering with SageMath 3
cocalc
sagemanifolds
60
views
1
answer
no
votes
2023-11-21 14:51:30 +0200
eric_g
grad on a generic metric
sagemanifolds
valueerror
newbie
73
views
2
answers
no
votes
2023-11-26 15:44:38 +0200
eric_g
Wrong result for gradient in spherical coordinates [closed]
sagemanifolds
56
views
1
answer
no
votes
2023-11-26 09:28:25 +0200
GPN
differential (1-form) simplifies a bit too much
simplify
manifolds
sagemanifolds
379
views
1
answer
no
votes
2023-11-26 11:29:26 +0200
achrzesz
How to express (-t^2 + x^2 + y^2 + z^2) as (x_μ)^2 ?
manifolds
sagemanifolds
symbolic-expression
254
views
2
answers
no
votes
2023-12-09 11:08:43 +0200
eric_g
Plotting transition-of-transition fails with "cannot evaluate symbolic expression"
sagemanifolds
transition_map
plot
300
views
1
answer
no
votes
2024-01-03 10:28:39 +0200
idontgetoutmuch
Connection Forms not Anti-Symmetric
manifolds
sagemanifolds
1
2
3
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