HP 50g Graphing P2C, PA2B2, Parametric, Xmin, ymin, xmax, ymax, indep, res, axes, ptype, depend

Access:	!°STACK OVER			( °is the leftshift of the Nkey).
Input/Output:
		Level 2	Level 1		Level 3	Level 2	Level 1
		obj1	obj2	→	obj1	obj2	obj1
See also:	PICK, ROLL, ROLLD, ROT, SWAP
P2C
Type:	Command
Description:	Takes a list representing a permutation as an argument, and returns the permutation decomposed
	into lists that represent cycles.
Access:	!ÞPERM
Input:	A list representing a permutation. For example, the list {3,1,2,5,4} defines a permutation P, such
	that P(1)=3, P(2)=1, P(3)=2, P(4)=5, and P(5)=4
Output:	Level 2/Item 1:A list of cycles equivalent to the permutation. For example, the list {3,1,2,5,4}
	defines a cycle C, such that C(3)=1, C(1)=2, C(2)=5, C(5)=4, and C(4)=3
	Level 1, Item 2: The signature of the permutation, 1 or –1.
Example:	Convert the permutation given by {3,4,5,2,1} into cycles:
Command:	P2C({3,4,5,2,1})
Result:	{{{1,3,5},{2,4}},-1}
See also:	C2P, CIRC
PA2B2
Type:	Function
Description:	Takes a prime number, p, such that p=2 orp ≡ 1 modulo 4, and returns a Gaussian integer a + ib
	such that p = a2 + b2. This function is useful for factorizing Gaussian integers.
Access:	Arithmetic, !ÞINTEGER L
Input:	A prime number, p, such that p=2 orp ≡ 1			modulo 4
Output:	A Gaussian integer a+ib such that p=a2+b2
Flags:	Exact mode must be set (flag –105 clear).
	Numeric mode must not be set (flag –3 clear).
	Complex mode must be set (flag –103 set).
See also:	GAUSS

PARAMETRIC

Type: Command

Description: Parametric Plot Type Command: Sets the plot type to PARAMETRIC.

When the plot type is PARAMETRIC, the DRAW command plots the current equation as a complexvalued function of one real variable. The c urrent equation is specified in the reserved variable EQ. The plotting parameters are specified in the reserved variable PPAR, which has the following form:

{(xmin, ymin), (xmax, ymax), indep, res, axes, ptype, depend }

For plot type PARAMETRIC, the elements of PPAR are used as follows:

•(xmin, ymin) is a complex number specifying the lower left corner of PICT (the lower left corner of the display range). The default value is (–6.5,–3.1) for the HP 48gII and (–6.5,–3.9) for the HP 50g and 49g+.

3162 Full Command and Function Reference