User`s guide
Getting Started
39
The Table 2-23 below lists the two-number functions of the calculator.
Two-number functions may be performed in either CHAIN or ALGEBRAIC mode.
Arithmetic with One-and Two-number Functions
Math functions operate on the number in the display.
Example 1
Calculate 
1
/
4
, then calculate   + 47.2 + 1.1
2
.
Table 2-23 Two-number functions
Keys Description
1APa 
Addition, subtraction, 
multiplication, division.
\Q 
The power function.
\¨ 
% Change.
]9 
Combinations.
]< 
Permutations.
\Ç 
The date and day, past or 
future, that is a given number of 
days from a given date.
\Ä 
The number of days between 
two dates.
]I 
Calculates the cumulative 
Student’s t probability given 
degrees of freedom and a t-
value.
]oI 
Calculates a t-value given 
degrees of freedom and the 
cumulative Student’s t 
probability.
Table 2-24 Calculating the expression
Keys Display Description
Y\b 
0.25 Calculates the reciprocal of 4.
G:\B 
4.47
Calculates .
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