HP 50g Graphing, 48gII Graphing manual Expandmod, COLCT, EXPAND, ISOL, QUAD, Show, Result X2+X

Flags:	Numerical Results (–3), Exact Mode (–105)
Input/Output:
		Level 1/Argument 1		Level 1/Item 1
		x	→	x
		'symb1'	→	'symb2'
		(x, y)	→	(x, y)
	'A^(B+C)'
Example 1:		EXPAN returns 'A^C*A^B'
Example 2:	'(X+Y)^2' EXPAN returns 'X^2+2*Y*X+Y^2'
See also:	COLCT, EXPAND, ISOL, QUAD, SHOW
EXPAND
Type:	Command
Description:	Expands and simplifies an algebraic expression. This command is similar to the EXPAN
	command (which is included to ensure backwardcompa tibility with the HP 48series calculators),
	except that EXPAND does more a more indepth analys is and often does a better job at
	simplifying an expression than EXPAN.
Access:	Algebra, …×or PALG
Input:	An expression, or an array of expressions.
Output:	The expanded and simplified expression or array of expressions.
Flags:	Exact mode must be set (flag –105 clear).
	Numeric mode must not be set (flag –3 clear).
	Radians mode must be set (flag –17 set).
Example:	Simplify the following expression:
	(x2 + 2x + 1)
	-------------------------------
	x + 1
Command:	EXPAND((X^2+2*X+1)/(X+1))
Result:	X+1
See also:	EXPAN
EXPANDMOD
Type:	Function
Description:	Expands and simplifies an algebraic expression, or an array of expressions, modulo the current
	modulus.
Access:	!ÞMODULO
Input:	An expression, or an array of expressions.
Output:	The expanded and simplified expression, or array of expressions, modulo the current modulus.
Flags:	Exact mode must be set (flag –105 clear).
	Numeric mode must not be set (flag –3 clear).
	Radians mode must be set (flag –17 set).

Example: Expand the following expression and give the result modulo 3:

(x + 3)( x + 4)

Command: EXPANDMOD((X+3)*(X+4))

Result: X^2+X

380 Full Command and Function Reference