Texas Instruments BA II Plus - Page 30

24 BA II PLUS™ Calculator
Compute-Only Variables
For compute-only variables, you compute values by displaying
the appropriate label and pressing
%
; you cannot enter a
value for this type of variable.
When you access a compute-only variable, the variable label
and the
COMPUTE
indicator are displayed. This indicator
reminds you to press
%
to compute a value for the displayed
variable. An = sign is displayed between the label and the value
when the value has been assigned to the variable.
Automatic-Compute Variables
For automatic-compute variables, you do not have to press
%
;
a value is automatically computed and displayed when you
access the variable by pressing
#
or
"
. After a value is
automatically computed, an = sign is displayed between the
label and the value.
Enter-or-Compute Variables in the TVM Worksheet
The five variables in the TVM worksheet (
N
,
I/Y
,
PV
,
PMT
, and
FV
) are enter-or-compute variables. It is not necessary to be in
the standard-calculator mode when you enter values for these
variables. However, you must be in the standard-calculator
mode to compute values for these variables.
•
To enter a TVM value, key a value into the display and press
the appropriate variable key.
•
To compute a TVM value, press
%
and the appropriate
variable key.