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NAMESPACE & format
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paboyle
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@ -28,35 +28,35 @@ with this program; if not, write to the Free Software Foundation, Inc.,
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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/* END LEGAL */
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#ifndef GRID_QCD_DIRAC_H
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#define GRID_QCD_DIRAC_H
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// Gamma matrices using the code generated by the Mathematica notebook
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// gamma-gen/gamma-gen.nb in Gamma.cc & Gamma.h
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////////////////////////////////////////////////////////////////////////////////
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// Gamma matrices using the code generated by the Mathematica notebook
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// gamma-gen/gamma-gen.nb in Gamma.cc & Gamma.h
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////////////////////////////////////////////////////////////////////////////////
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#include <Grid/qcd/spin/Gamma.h>
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namespace Grid {
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NAMESPACE_BEGIN(Grid);
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// Dirac algebra adjoint operator (not in QCD:: to overload other adj)
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inline QCD::Gamma adj(const QCD::Gamma &g)
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{
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return QCD::Gamma (QCD::Gamma::adj[g.g]);
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return QCD::Gamma (QCD::Gamma::adj[g.g]);
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}
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namespace QCD {
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// Dirac algebra mutliplication operator
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inline Gamma operator*(const Gamma &g1, const Gamma &g2)
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{
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return Gamma (Gamma::mul[g1.g][g2.g]);
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return Gamma (Gamma::mul[g1.g][g2.g]);
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}
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// general left multiply
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template<class vtype>
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inline auto operator*(const Gamma &G, const iScalar<vtype> &arg)
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->typename std::enable_if<matchGridTensorIndex<iScalar<vtype>,SpinorIndex>::notvalue,iScalar<vtype>>::type
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->typename std::enable_if<matchGridTensorIndex<iScalar<vtype>,SpinorIndex>::notvalue,iScalar<vtype>>::type
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{
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iScalar<vtype> ret;
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ret._internal=G*arg._internal;
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@ -65,7 +65,7 @@ inline auto operator*(const Gamma &G, const iScalar<vtype> &arg)
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template<class vtype,int N>
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inline auto operator*(const Gamma &G, const iVector<vtype, N> &arg)
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->typename std::enable_if<matchGridTensorIndex<iVector<vtype,N>,SpinorIndex>::notvalue,iVector<vtype,N>>::type
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->typename std::enable_if<matchGridTensorIndex<iVector<vtype,N>,SpinorIndex>::notvalue,iVector<vtype,N>>::type
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{
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iVector<vtype,N> ret;
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for(int i=0;i<N;i++){
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@ -76,20 +76,20 @@ inline auto operator*(const Gamma &G, const iVector<vtype, N> &arg)
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template<class vtype, int N>
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inline auto operator*(const Gamma &G, const iMatrix<vtype, N> &arg)
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype,N>,SpinorIndex>::notvalue,iMatrix<vtype,N>>::type
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype,N>,SpinorIndex>::notvalue,iMatrix<vtype,N>>::type
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{
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iMatrix<vtype,N> ret;
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for(int i=0;i<N;i++){
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for(int j=0;j<N;j++){
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ret._internal[i][j]=G*arg._internal[i][j];
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}}
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for(int j=0;j<N;j++){
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ret._internal[i][j]=G*arg._internal[i][j];
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}}
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return ret;
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}
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// general right multiply
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template<class vtype>
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inline auto operator*(const iScalar<vtype> &arg, const Gamma &G)
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->typename std::enable_if<matchGridTensorIndex<iScalar<vtype>,SpinorIndex>::notvalue,iScalar<vtype>>::type
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->typename std::enable_if<matchGridTensorIndex<iScalar<vtype>,SpinorIndex>::notvalue,iScalar<vtype>>::type
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{
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iScalar<vtype> ret;
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ret._internal=arg._internal*G;
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@ -98,13 +98,13 @@ inline auto operator*(const iScalar<vtype> &arg, const Gamma &G)
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template<class vtype, int N>
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inline auto operator * (const iMatrix<vtype, N> &arg, const Gamma &G)
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype,N>,SpinorIndex>::notvalue,iMatrix<vtype,N>>::type
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype,N>,SpinorIndex>::notvalue,iMatrix<vtype,N>>::type
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{
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iMatrix<vtype,N> ret;
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for(int i=0;i<N;i++){
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for(int j=0;j<N;j++){
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ret._internal[i][j]=arg._internal[i][j]*G;
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}}
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for(int j=0;j<N;j++){
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ret._internal[i][j]=arg._internal[i][j]*G;
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}}
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return ret;
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}
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@ -123,7 +123,7 @@ public:
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// vector multiply
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template<class vtype>
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inline auto operator*(const GammaL &gl, const iVector<vtype, Ns> &arg)
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->typename std::enable_if<matchGridTensorIndex<iVector<vtype, Ns>, SpinorIndex>::value, iVector<vtype, Ns>>::type
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->typename std::enable_if<matchGridTensorIndex<iVector<vtype, Ns>, SpinorIndex>::value, iVector<vtype, Ns>>::type
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{
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iVector<vtype, Ns> buf;
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@ -138,17 +138,17 @@ inline auto operator*(const GammaL &gl, const iVector<vtype, Ns> &arg)
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// matrix left multiply
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template<class vtype>
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inline auto operator*(const GammaL &gl, const iMatrix<vtype, Ns> &arg)
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype, Ns>, SpinorIndex>::value, iMatrix<vtype, Ns>>::type
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype, Ns>, SpinorIndex>::value, iMatrix<vtype, Ns>>::type
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{
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iMatrix<vtype, Ns> buf;
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for(unsigned int i = 0; i < Ns; ++i)
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{
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buf(0, i) = 0.;
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buf(1, i) = 0.;
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buf(2, i) = 2.*arg(2, i);
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buf(3, i) = 2.*arg(3, i);
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}
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{
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buf(0, i) = 0.;
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buf(1, i) = 0.;
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buf(2, i) = 2.*arg(2, i);
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buf(3, i) = 2.*arg(3, i);
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}
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return gl.gamma*buf;
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};
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@ -156,18 +156,18 @@ inline auto operator*(const GammaL &gl, const iMatrix<vtype, Ns> &arg)
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// matrix right multiply
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template<class vtype>
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inline auto operator*(const iMatrix<vtype, Ns> &arg, const GammaL &gl)
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype, Ns>, SpinorIndex>::value, iMatrix<vtype, Ns>>::type
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype, Ns>, SpinorIndex>::value, iMatrix<vtype, Ns>>::type
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{
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iMatrix<vtype, Ns> buf;
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buf = arg*gl.gamma;
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for(unsigned int i = 0; i < Ns; ++i)
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{
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buf(i, 0) = 0.;
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buf(i, 1) = 0.;
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buf(i, 2) = 2.*buf(i, 2);
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buf(i, 3) = 2.*buf(i, 3);
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}
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{
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buf(i, 0) = 0.;
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buf(i, 1) = 0.;
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buf(i, 2) = 2.*buf(i, 2);
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buf(i, 3) = 2.*buf(i, 3);
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}
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return buf;
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};
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@ -175,7 +175,7 @@ inline auto operator*(const iMatrix<vtype, Ns> &arg, const GammaL &gl)
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//general left multiply
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template<class vtype>
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inline auto operator*(const GammaL &gl, const iScalar<vtype> &arg)
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->typename std::enable_if<matchGridTensorIndex<iScalar<vtype>,SpinorIndex>::notvalue,iScalar<vtype>>::type
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->typename std::enable_if<matchGridTensorIndex<iScalar<vtype>,SpinorIndex>::notvalue,iScalar<vtype>>::type
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{
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iScalar<vtype> ret;
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ret._internal=gl*arg._internal;
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@ -184,7 +184,7 @@ inline auto operator*(const GammaL &gl, const iScalar<vtype> &arg)
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template<class vtype,int N>
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inline auto operator*(const GammaL &gl, const iVector<vtype, N> &arg)
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->typename std::enable_if<matchGridTensorIndex<iVector<vtype,N>,SpinorIndex>::notvalue,iVector<vtype,N>>::type
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->typename std::enable_if<matchGridTensorIndex<iVector<vtype,N>,SpinorIndex>::notvalue,iVector<vtype,N>>::type
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{
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iVector<vtype,N> ret;
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for(int i=0;i<N;i++){
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@ -195,20 +195,20 @@ inline auto operator*(const GammaL &gl, const iVector<vtype, N> &arg)
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template<class vtype, int N>
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inline auto operator*(const GammaL &gl, const iMatrix<vtype, N> &arg)
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype,N>,SpinorIndex>::notvalue,iMatrix<vtype,N>>::type
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype,N>,SpinorIndex>::notvalue,iMatrix<vtype,N>>::type
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{
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iMatrix<vtype,N> ret;
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for(int i=0;i<N;i++){
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for(int j=0;j<N;j++){
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ret._internal[i][j]=gl*arg._internal[i][j];
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}}
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for(int j=0;j<N;j++){
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ret._internal[i][j]=gl*arg._internal[i][j];
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}}
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return ret;
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}
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//general right multiply
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template<class vtype>
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inline auto operator*(const iScalar<vtype> &arg, const GammaL &gl)
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->typename std::enable_if<matchGridTensorIndex<iScalar<vtype>,SpinorIndex>::notvalue,iScalar<vtype>>::type
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->typename std::enable_if<matchGridTensorIndex<iScalar<vtype>,SpinorIndex>::notvalue,iScalar<vtype>>::type
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{
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iScalar<vtype> ret;
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ret._internal=arg._internal*gl;
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@ -217,16 +217,16 @@ inline auto operator*(const iScalar<vtype> &arg, const GammaL &gl)
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template<class vtype, int N>
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inline auto operator * (const iMatrix<vtype, N> &arg, const GammaL &gl)
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype,N>,SpinorIndex>::notvalue,iMatrix<vtype,N>>::type
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->typename std::enable_if<matchGridTensorIndex<iMatrix<vtype,N>,SpinorIndex>::notvalue,iMatrix<vtype,N>>::type
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{
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iMatrix<vtype,N> ret;
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for(int i=0;i<N;i++){
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for(int j=0;j<N;j++){
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ret._internal[i][j]=arg._internal[i][j]*gl;
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}}
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for(int j=0;j<N;j++){
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ret._internal[i][j]=arg._internal[i][j]*gl;
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}}
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return ret;
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}
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}}
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NAMESPACE_END(Grid);
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#endif
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