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    Chapter 2: Math Operations
7302ENG.DOC   CH2 Math Operations, English   Julie Hewlett   Revised: 07/29/98 11:58 AM   Printed: 05/19/99 8:58
AM   Page 30 of 32
 
Inverse Function   
Inverse Function   -
 
  ƒ
Returns the inverse, x
-1
, of value, which is the equivalent of the
reciprocal, 
1
/
x
, of a real number, expression, or each element
in a list.
value
 -1
Important: To ensure that results are displayed as simple
fractions instead of mixed numbers, select 
b/c
 Display Format
mode.
Calculate 
5
/
8
 -1
.
:
5
=
8
" - ƒ
b
Calculate M2.5
-1
.
a
2 . 5
- ƒ b
 
Square   
Square   6
Finds the square of a real number, an expression, or each
element in a list. Note: Using parentheses with 6 ensures
that you get the correct answer. Refer to Appendix B:
Reference Information for Equation Operating System (EOS)
calculation rules.
value
2
Calculate 5
2
.
:
5
6 b
Compare the results of M5
and (M5)
2.
.
1. Calculate M5
2
.
a
5
6 b
³
³
³
³