LongNum Class Reference

Inheritance diagram for LongNum:

Public Member Functions
	__construct ($val=0, $radix=LN_DEFAULT_RADIX)
	__toString ()
	div_int ($by)
	set_val ($val, $base=LN_DEFAULT_RADIX)
	add ($op, $base=LN_DEFAULT_RADIX)
	negative ()
Data Fields
	$carry
	$radix
Static Public Attributes
static	$digits = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'
Protected Member Functions
	get_val ()
	reduce ()
	set_float ($op)
	set_integer ($op)
	set_str (&$op, $base)
	set_obj ($op)
	get_obj ()
	add_str (&$op, $base)
	add_float (&$op)
	add_integer ($op)
	add_obj ($op)
	get_sign ()
	set_sign ($sgn)

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Member Function Documentation

__toString

(

)

Valoarea string a obiectului este reprezentarea numarului in baza $this->radix

Reimplemented from PkInts.

negative

(

)

Obtine opusul numarului

Numerele intregi se reprezinta ca complementi fata de 2^n, de aceea pentru a obtine valoarea negativa a numarului z, putem aplica formula: -z == ~z + 1, unde ~z este complementul fata de 2^n a numarului z. ~z = 2^n - 1 - z

Observatie: ~z - 1 = ~(z + 1)

reduce

(

)

[protected]

Reduce octetii superiori, daca e posibil, fara a skimba valoarea numarului

set_str	(	&$	op,
		$	base
	)			[protected]

$op reprezinta inscrierea unui numar in baza $base.

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

• d:/DUzunSys/DLib/PHP/math/LongNum.php