Constant Menu; Diff & Int Menu; Hyperb Menu; Integer Menu - HP 40gs User Manual

IM
–
RE
SIGN

Constant menu

π
e, i,
∞
Diff & Int menu

Hyperb menu

Integer menu

14-46
returns:
Y = X –1 + 2
Pressing simplifies this to:
Y = X + 1
See "IM" on page 13-7.
Specifies the negation of the argument.
See "RE" on page 13-8.
Determines the quotient of the argument divided by its
modulus.
Example
Typing SIGN(7 + 4i) or SIGN(7,4) yields
See "Constants" on page 13-8.
Enters the sign for infinity.
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.
All the functions on this menu are described in
"Hyperbolic trigonometry" on page 13-9.
Note that many integer functions also work with Gaussian
integers (a + bi where a and b are integers).
7 + 4i
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.
65
Computer Algebra System (CAS)