Wolfram Language Paclet Repository
Community-contributed installable additions to the Wolfram Language
BowenPing`STensor`
Symmetrize  |
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Details and Options
Examples
(5)
Basic Examples
(3)
A metric is a symmetric (0,2)-rank tensor:
In[1]:=
g=
"g",{0,2},{x,y},Array[&,{2,2}],
True;
[g]
 | CreateTensor |
"g"
##
 | IsMetric |
 | Symmetrize |
Out[1]=
STensor
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The components array has been symmetrized. Reset metric g:
In[2]:=
g=
[g];g
| Symmetrize |
Out[2]=
STensor
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In[1]:=
T=
["T",{1,2},{x,y,z},Array[&,{3,3,3}]];
[T,Symmetric[{1,2}]]["Components"]//MatrixForm
| CreateTensor |
"T"
##
| Symmetrize |
Out[1]//MatrixForm=
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In[2]:=
| Symmetrize |
Out[2]//MatrixForm=
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And in a expression, indices can be used to replace slot number, too.
In[1]:=
T=
["T",{1,2},{x,y,z},Array[&,{3,3,3}]];
[T["a","bc"],Symmetric[{"a","b"}]]["Components"]//MatrixForm
| CreateTensor |
"T"
##
| Symmetrize |
Out[1]//MatrixForm=
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Scope
(1)
Properties & Relations
(1)
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