SYM Paclet Symbol
VariationalIntegralInvariance
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AdjointEq
AdjointEq[
eq, dVar
]
gives the adjoint equation of equation
eq.
dVar
provides the symbol for the new dependent variable.
AdjointEq[
system
,
dVars
]
gives the adjoint system of equations of the
system
.
dVars
provides the symbols for the new dependent variables.
MORE INFORMATION
To use
AdjointEq
, you first need to load the
SYM Package
using
Needs
["SYM`"].
dVar
is optional. If it is not specified a unique variable shall be assigned.
EXAMPLES
CLOSE ALL
Basic Examples
(3)
In[1]:=
The adjoint equation of the heat equation is:
In[2]:=
Out[2]=
In[1]:=
The adjoint equation of the KdV is:
In[2]:=
Out[2]=
In[1]:=
The adjoint equation for the harmonic equation is:
In[2]:=
Out[2]=
Evidently, tthe harmonic oscillator is self-adjoint.
SEE ALSO
VariationalIntegralInvariance
TUTORIALS
SYM and Conservation Laws
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SYM Overview