mirror of
https://github.com/paboyle/Grid.git
synced 2024-09-20 09:15:38 +01:00
48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
#ifndef GRID_MATH_OUTER_H
|
|
#define GRID_MATH_OUTER_H
|
|
namespace Grid {
|
|
///////////////////////////////////////////////////////////////////////////////////////
|
|
// outerProduct Scalar x Scalar -> Scalar
|
|
// Vector x Vector -> Matrix
|
|
///////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
template<class l,class r,int N> inline
|
|
auto outerProduct (const iVector<l,N>& lhs,const iVector<r,N>& rhs) -> iMatrix<decltype(outerProduct(lhs._internal[0],rhs._internal[0])),N>
|
|
{
|
|
typedef decltype(outerProduct(lhs._internal[0],rhs._internal[0])) ret_t;
|
|
iMatrix<ret_t,N> ret;
|
|
for(int c1=0;c1<N;c1++){
|
|
for(int c2=0;c2<N;c2++){
|
|
ret._internal[c1][c2] = outerProduct(lhs._internal[c1],rhs._internal[c2]);
|
|
}}
|
|
return ret;
|
|
}
|
|
template<class l,class r> inline
|
|
auto outerProduct (const iScalar<l>& lhs,const iScalar<r>& rhs) -> iScalar<decltype(outerProduct(lhs._internal,rhs._internal))>
|
|
{
|
|
typedef decltype(outerProduct(lhs._internal,rhs._internal)) ret_t;
|
|
iScalar<ret_t> ret;
|
|
ret._internal = outerProduct(lhs._internal,rhs._internal);
|
|
return ret;
|
|
}
|
|
|
|
inline ComplexF outerProduct(const ComplexF &l, const ComplexF& r)
|
|
{
|
|
return l*r;
|
|
}
|
|
inline ComplexD outerProduct(const ComplexD &l, const ComplexD& r)
|
|
{
|
|
return l*r;
|
|
}
|
|
inline RealF outerProduct(const RealF &l, const RealF& r)
|
|
{
|
|
return l*r;
|
|
}
|
|
inline RealD outerProduct(const RealD &l, const RealD& r)
|
|
{
|
|
return l*r;
|
|
}
|
|
|
|
}
|
|
#endif
|