lar::util::details::DeterminantHelper< T, N, R1, R2, C1, C2 > Struct Template Reference

Determinant of a 2x2 submatrix. More...

#include <FastMatrixMathHelper.h>

Inheritance diagram for lar::util::details::DeterminantHelper< T, N, R1, R2, C1, C2 >:

Static Public Member Functions
static constexpr T	sqr (T v)
static T	compute (T const *data)
Static Public Member Functions inherited from lar::util::details::DeterminantHelperBase< N >
static constexpr size_t	index (unsigned int row, unsigned int col)

Detailed Description

template<typename T, unsigned int N, unsigned int R1, unsigned int R2, unsigned int C1, unsigned int C2>
struct lar::util::details::DeterminantHelper< T, N, R1, R2, C1, C2 >

Determinant of a 2x2 submatrix.

Definition at line 164 of file FastMatrixMathHelper.h.

Member Function Documentation

template<typename T , unsigned int N, unsigned int R1, unsigned int R2, unsigned int C1, unsigned int C2>

static T lar::util::details::DeterminantHelper< T, N, R1, R2, C1, C2 >::compute ( T const *  data )

inlinestatic

Definition at line 175 of file FastMatrixMathHelper.h.

          {
            return data[index(R1, C1)] * data[index(R2, C2)]
              - data[index(R1, C2)] * data[index(R2, C1)];
            /* // also
                data[index(R1, C1)] * UpHelper<R2, C2>::compute(data)
              - data[index(R1, C2)] * UpHelper<R2, C1>::compute(data)
             */
          }

template<typename T , unsigned int N, unsigned int R1, unsigned int R2, unsigned int C1, unsigned int C2>

static constexpr T lar::util::details::DeterminantHelper< T, N, R1, R2, C1, C2 >::sqr ( T  v )

inlinestatic

Definition at line 173 of file FastMatrixMathHelper.h.

{ return v*v; }

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The documentation for this struct was generated from the following file:

• lardata/lardata/Utilities/FastMatrixMathHelper.h