ecl::PascalsTriangle< 5 > Class Template Reference

Holds the coefficients of pascal's triangle up to n = 5. More...

#include <pascals_triangle.hpp>

Public Types
typedef Array< int, 21 >::const_iterator	const_iterator
	Utilise the array's iterator for parsing the triangle. More...

Public Member Functions
const_iterator	begin (unsigned int index=0) const
	Iterator generator for diagonals of pascals triangle [begin]. More...
const_iterator	end (unsigned int index=0) const
	Iterator generator for diagonals of pascals triangle [begin]. More...
	PascalsTriangle ()
	Default constructor. More...
virtual	~PascalsTriangle ()

Private Attributes
Array< int, 21 >	coefficients

Friends
template<typename OutputStream >
OutputStream &	operator<< (OutputStream &ostream, const PascalsTriangle< 5 > &triangle)
	Insertion operator for streaming output from pascal's triangle of degree 5. More...

Detailed Description

template<>
class ecl::PascalsTriangle< 5 >

Holds the coefficients of pascal's triangle up to n = 5.

Stores the coefficients of all diagonals up until row 5 - i.e. all coefficients up to and including those for (x+y)^0 to (x+y)^5. This is used fairly often, so defined here to avoid the slow calculation of the general case.

See also

PascalsTriangle, Math::Polynomials.

Definition at line 154 of file pascals_triangle.hpp.

Member Typedef Documentation

typedef Array<int,21>::const_iterator ecl::PascalsTriangle< 5 >::const_iterator

Utilise the array's iterator for parsing the triangle.

Definition at line 166 of file pascals_triangle.hpp.

Constructor & Destructor Documentation

ecl::PascalsTriangle< 5 >::PascalsTriangle

(

)

Default constructor.

This constructor speeds things up by initialising the triangle internally with the coefficients directly.

Definition at line 51 of file pascals_triangle.cpp.

virtual ecl::PascalsTriangle< 5 >::~PascalsTriangle ( )

inlinevirtual

Definition at line 166 of file pascals_triangle.hpp.

Member Function Documentation

PascalsTriangle< 5 >::const_iterator ecl::PascalsTriangle< 5 >::begin

(

unsigned int

index = 0

)

const

Iterator generator for diagonals of pascals triangle [begin].

Return a const iterator pointing to the first element of the specified diagonal.

Parameters

index

: the diagonal to be iterated.

Returns

const_iterator : constant iterator pointing pointing to the first element of the specified diagonal/row.

Definition at line 60 of file pascals_triangle.cpp.

PascalsTriangle< 5 >::const_iterator ecl::PascalsTriangle< 5 >::end

(

unsigned int

index = 0

)

const

Iterator generator for diagonals of pascals triangle [begin].

Return a const iterator just past the last element of the specified diagonal.

Parameters

index

: the diagonal to be iterated.

Returns

const_iterator : constant iterator pointing just beyond the last of the specified diagonal/row.

Definition at line 67 of file pascals_triangle.cpp.

Friends And Related Function Documentation

template<typename OutputStream >

OutputStream& operator<< ( OutputStream &  ostream, const PascalsTriangle< 5 > &  triangle  )

friend

Insertion operator for streaming output from pascal's triangle of degree 5.

Insertion operator for streaming output from pascal's triangle.

Parameters

ostream	: the output stream being used.
triangle	: the pascal triangle object.

Returns

OutputStream : the output stream.

Definition at line 323 of file pascals_triangle.hpp.

Member Data Documentation

Array<int,21> ecl::PascalsTriangle< 5 >::coefficients

private

Definition at line 196 of file pascals_triangle.hpp.

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The documentation for this class was generated from the following files:

• pascals_triangle.hpp
• pascals_triangle.cpp