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 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 165 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 174 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<unsigned int N>

static constexpr size_t lar::util::details::DeterminantHelperBase< N >::index ( unsigned int  row, unsigned int  col  )

inlinestaticinherited

Definition at line 132 of file FastMatrixMathHelper.h.

References col.

        {
          return MatrixIndex<N>(row, col);
        }

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 172 of file FastMatrixMathHelper.h.

{ return v * v; }

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

• lardata/v09_16_03/source/lardata/Utilities/FastMatrixMathHelper.h