legendre#

Return Legendre polynomial coefficients at the input operator

template<typename T1, typename T2, typename T3>
auto __MATX_INLINE__ matx::legendre(T1 n, T2 m, const T3 in)#

Legendre polynomial operator

constructs the legendre polynomial coefficients evaluated at the input operator

Template Parameters:
  • T1 – Input Operator

  • m – The degree operator

Parameters:
  • in – Operator that computes the location to evaluate the lengrande polynomial

  • n – order of the polynomial produced

  • m – operator specifing which degrees to output

Returns:

New operator with Rank+1 and size of last dimension = order.

template<typename T1, typename T2, typename T3>
auto __MATX_INLINE__ matx::legendre(T1 n, T2 m, const T3 in, int (&axis)[2])#
template<typename T1, typename T2, typename T3>
auto __MATX_INLINE__ matx::legendre(T1 n, T2 m, const T3 in, std::array<int, 2> axis)#

Legendre polynomial operator

constructs the legendre polynomial coefficients evaluated at the input operator. This version of the API produces all n+1 coefficients

Template Parameters:

T1 – Input Operator

Parameters:
  • in – Operator that computes the location to evaluate the lengrande polynomial

  • n – order of the polynomial produced

  • m – operator specifing which degrees to output

  • axis – The axis to write the polynomial coeffients into the output tensor

Returns:

New operator with Rank+1 and size of last dimension = order.

Examples#

auto n = range<0, 1, int>({order}, 0, 1);
auto m = range<0, 1, int>({order}, 0, 1);
auto x = as_type<TestType>(linspace<0>({size}, TestType(0), TestType(1)));

auto out = make_tensor<TestType>({order, order, size});

(out = legendre(n, m, x)).run(exec);