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General questions
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Recent questions and answers in General questions
Recent questions and answers in General questions
0
votes
2
answers
A vector-field basis of derivatives?
answered
14 hours
ago
in
General questions
by
gpn
(
1.4k
points)
scalar-field
vector-field
partialderivative
+1
vote
2
answers
Is eliminate_metric supposed to move partial derivative indices?
answered
1 day
ago
in
General questions
by
gpn
(
1.4k
points)
eliminate_metric
indices
partial
derivative
+1
vote
2
answers
Avoiding index classes when handling ExNodes
answered
2 days
ago
in
General questions
by
dbutter
(
950
points)
dummy-indices
+1
vote
2
answers
How to get the `weight` value of an object?
answered
4 days
ago
in
General questions
by
kasper
(
73.1k
points)
cadabra2
properties
algorithms
weight
+1
vote
0
answers
Efficiency in python vs cadabra for long substitution rules
asked
5 days
ago
in
General questions
by
dbutter
(
950
points)
+1
vote
1
answer
Trigonometric and hyperbolic functions
answered
5 days
ago
in
General questions
by
doxdrum
(
12.5k
points)
trigonometric
functions
+1
vote
0
answers
Hodge dual in exterior calculus
asked
6 days
ago
in
General questions
by
eschnett
(
130
points)
exterior-calculus
hodge
hodge-dual
+1
vote
1
answer
How AntiCommuting information is stored
answered
Nov 21
in
General questions
by
kasper
(
73.1k
points)
anticommuting
0
votes
1
answer
Differentiate a propagator
answered
Nov 18
in
General questions
by
gpn
(
1.4k
points)
0
votes
1
answer
eliminate_vielbein "eliminates" with a Minkowski metric
answered
Nov 16
in
General questions
by
gpn
(
1.4k
points)
eliminate_vielbein
+1
vote
2
answers
How to implement a zoom-sensitive algorithm
answered
Nov 13
in
General questions
by
kasper
(
73.1k
points)
algorithms
zoom-unzoom
+1
vote
1
answer
How could the partial derivatives be sorted?
answered
Nov 10
in
General questions
by
gpn
(
1.4k
points)
substitute
partialderivative
algorithms
sort
+1
vote
1
answer
How to calculate the determinant of a tensor density?
answered
Nov 9
in
General questions
by
doxdrum
(
12.5k
points)
algorithms
determinant
0
votes
4
answers
Expansion of covariant derivative
answered
Nov 8
in
General questions
by
doxdrum
(
12.5k
points)
indices
python-functions
expand
covariant-derivative
0
votes
1
answer
How to change the order of two indexes in a complex statement
answered
Oct 25
in
General questions
by
gpn
(
1.4k
points)
symmetry
+1
vote
2
answers
Zooming in on a specific term and applying a rule
answered
Oct 20
in
General questions
by
doxdrum
(
12.5k
points)
partialderivative
indices
+1
vote
2
answers
Getting two terms with derivatives to form a product
answered
Oct 17
in
General questions
by
doxdrum
(
12.5k
points)
partialderivative
collect_terms
+1
vote
2
answers
symmetrise slots function
answered
Sep 15
in
General questions
by
kasper
(
73.1k
points)
symmetrise_slots
indices
+1
vote
0
answers
Lie derivative in Cadabra
asked
Aug 22
in
General questions
by
amnon.willinger
(
380
points)
indices
dummy-indices
partial
programming
+1
vote
3
answers
Why doesn't distribute() completely expand products involving sums of kronecker deltas?
answered
Jun 20
in
General questions
by
kasper
(
73.1k
points)
kronecker-delta
distribute
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