Reference Guide

Full Command and Function Reference 3-121
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).
See also: QUOT, IDIV2
IREMAINDER
Type: Function
Description: Returns the remainder of an integer division.
Access: P ARITH or Arithmetic, !Þ INTEGER L
Input: Level 2/Argument 1: The numerator.
Level 1/Argument 2: The denominator.
Output: The remainder.
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).
See also: IDIV2
ISOL
Type: Command
Description: Isolate Variable Command: Returns an algebraic symb
2
that rearranges symb
1
to “isolate” the first
occurrence of variable global.
The result symb
2
is an equation of the form global = expression. If global appears more than once,
then symb
2
is effectively the right side of an equation obtained by rearranging and solving symb
1
to
isolate the first occurrence of global on the left side of the equation.
If symb
1
is an expression, it is treated as the left side of an equation symb
1
= 0.
If global appears in the argument of a function within symb
1
, that function must be an analytic
function, that is, a function for which the calculator provides an inverse. Thus ISOL cannot solve
IP(x)=0 for x, since IP has no inverse.
ISOL is identical to SOLVE.
Access: !Î ISOL ( Îis the left-shift of the 7key).
Flags: Principal Solution (–1), Numerical Results (–3)
Input/Output:
Level 2/Argument 1 Level 1/Argument 2 Level 1/Item 1
'symb
1
' 'global'
→
'symb
2
'
See also: COLCT, EXPAN, QUAD, SHOW, SOLVE
ISOM
Type: Command
Description: Determine the characteristics of a 2-d or 3-d linear isometry.
Access: Matrices, !Ø LINEAR APPL
Input: A square matrix representing a linear isometry.
Output: A vector and/or an angle that represent the symmetry of the matrix, and 1 (for a direct isometry)
or –1 (for an indirect isometry).
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).