ecl::PascalsTriangle< 3 > Class Reference

Holds the coefficients of pascal's triangle up to n = 3. More...

#include <pascals_triangle.hpp>

Public Types
typedef Array< int, 10 >::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, 10 >	coefficients

Friends
template<typename OutputStream >
OutputStream &	operator<< (OutputStream &ostream, const PascalsTriangle< 3 > &triangle)
	Insertion operator for streaming output from pascal's triangle of degree 3. More...

Detailed Description

Holds the coefficients of pascal's triangle up to n = 3.

Stores the coefficients of all diagonals up until row 3 - i.e. all coefficients up to and including those for (x+y)^0 to (x+y)^3. 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 101 of file pascals_triangle.hpp.

Member Typedef Documentation

const_iterator

typedef Array<int,10>::const_iterator ecl::PascalsTriangle< 3 >::const_iterator

Utilise the array's iterator for parsing the triangle.

Definition at line 115 of file pascals_triangle.hpp.

Constructor & Destructor Documentation

PascalsTriangle()

ecl::PascalsTriangle< 3 >::PascalsTriangle

(

)

Default constructor.

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

Definition at line 28 of file pascals_triangle.cpp.

~PascalsTriangle()

virtual ecl::PascalsTriangle< 3 >::~PascalsTriangle ( )

inlinevirtual

Definition at line 115 of file pascals_triangle.hpp.

Member Function Documentation

begin()

PascalsTriangle< 3 >::const_iterator ecl::PascalsTriangle< 3 >::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 35 of file pascals_triangle.cpp.

end()

PascalsTriangle< 3 >::const_iterator ecl::PascalsTriangle< 3 >::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 42 of file pascals_triangle.cpp.

Friends And Related Function Documentation

operator<<

template<typename OutputStream >

OutputStream& operator<< ( OutputStream &  ostream, const PascalsTriangle< 3 > &  triangle  )

friend

Insertion operator for streaming output from pascal's triangle of degree 3.

Insertion operator for streaming output from pascal's triangle.

Parameters

ostream	: the stream to send the output to.
triangle	: the pascal triangle object.

Returns

OutputStream : the output stream.

Definition at line 303 of file pascals_triangle.hpp.

Member Data Documentation

coefficients

Array<int,10> ecl::PascalsTriangle< 3 >::coefficients

private

Definition at line 145 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