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HP 40gs User Manual

HP 40gs
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14-46 Computer Algebra System (CAS)
returns:
Y = X –1 + 2
Pressing simplifies this to:
Y = X + 1
IM See “IM” on page 13-7.
Specifies the negation of the argument.
RE See “RE” on page 13-8.
SIGN
Determines the quotient of the argument divided by its
modulus.
Example
Typing SIGN(7 + 4i) or SIGN(7,4) yields .
Constant menu
e, i, π See “Constants” on page 13-8.
Enters the sign for infinity.
Diff & Int menu
All the functions on this menu are also available on the
menu in the Equation Writer. See “DIFF menu” on
page 14-16 for a description of these functions.
Hyperb menu
All the functions on this menu are described in
“Hyperbolic trigonometry” on page 13-9.
Integer menu
Note that many integer functions also work with Gaussian
integers (a + bi where a and b are integers).
74i+
65
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hp40g+.book Page 46 Friday, December 9, 2005 12:27 AM

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HP 40gs Specifications

General IconGeneral
BrandHP
Model40gs
CategoryCalculator
LanguageEnglish

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