Integer; Intvx; Inv; Invmod - HP 48gII Advanced User's Reference Manual

INTEGER

CAS: Display a menu or list of CAS integer operations.

INTVX

CAS: Find the antiderivative of a function symbolically, with respect to the current default variable.

INV

Type: Analytic function
Description: Inverse (1/x) Analytic Function: Returns the reciprocal or the matrix inverse.
For a complex argument (x, y), the inverse is the complex number:
Matrix arguments must be square (real or complex). The computed inverse matrix A
× A = I
-1
n
Y
Access:
Flags: Numerical Results (–3)
Input/Output:
See also: SINV, /

INVMOD

CAS: Perform modular inversion on an object, modulo the current modulus.
IP
Type: Function
Description: Integer Part Function: Returns the integer part of its argument.
The result has the same sign as the argument.
!´
Access:
Flags: Numerical Results (–3)
Input/Output:
See also: FP

IQUOT

CAS: Return the integer (or Euclidean) quotient of integers a, b; the integer part of a/b.

IREMAINDER

CAS: Return the remainder of the division of one integer by another.

ISOL

Type: Command
⎛
⎜
⎝
, where I is the n × n identity matrix.
n
Level 1/Argument 1
z
[[ matrix ]]
'symb'
x_unit
L
REAL IP
Level 1/Argument 1
x
x_unit
'symb'
⎞
x y –
---------------- ----------------
⎟
2 2 2 2
⎠
x + y x + y
( ´ is the left-shift of the Pkey).
Full Command and Function Reference 3-87
satisfies A
-1
Level 1/Item 1
1/z
[[ matrix ]]
–1
'INV(symb)'
1/x_1/unit
Level 1/Item 1
n
n_unit
'IP(symb)'