HP 49g Graphing Calculator - Manual (Page 179)

See also: SIGMA, RISCH
SIGNTAB
Type: Command
Description: Tabulates the sign of a rational function of one variable.
Access: Catalog,
(Cl)
Input: An algebraic expression.
Output: A list containing, the points where the expression
changes sign, and for each point, the sign of the
expression between the points.
Flags: Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).
SIMP2
Type: Command
Description: Simplifies two objects by dividing tltem by their greatest
common divisor.
Access: Arithmetic, 0®H)
Input: Level 2/Argument 1: The first object.
Level 1/Ai'gument 2: The second object.
Output: Level 2/Item 1: The first object divided by the greatest
common divisor.
Level 1/Item 2: The second object divided by the greatest
common divisor.
Flags: Exact mode must be set (flag -105 clear).
Numeric mode must not be set (flag -03 clear).
Example: Divide the following expressions by their greatest
common divisor:
+ 6x^ + 1 1X + 6
.X'’ - 7x - 6
Command:
S I M P 2 ( X " 3 + 6 * X " 2 + l l * X + 6 , X " ' 3 - 7 * X - 6 )
Result:
{ X + 3 , X - 3 }
Page 14-56 Computer Algebra Commands