Programming instructions

Intermec Fingerprint v7.61 – Programmer’s Reference Manual Ed. 7 87
Chapter 2 Program Instructions
FLOATCALC$
Field of Application Function for calculation with fl oat numbers.
Syntax FLOATCALC$(<sexp
1
>,<sexp
2
>,<sexp
3
>[,<nexp
1
>])
<sexp
1
> is the fi rst operand.
<sexp
2
> is the operator (+, -, *, or /).
<sexp
3
> is the second operand.
<nexp
1
> is, optionally, the precision in decimals (default 10).
Remarks
Operands are fl oat numbers, that is, a string of digits with a decimal point to
separate decimals from integers. Operands can also contain leading plus
(+), minus (-), and space characters. Space characters are ignored, whereas
the usual mathematical rules apply to plus and minus signs. All other
characters (or plus, minus, and space characters in other positions than
leading) generate errors.
Note the mathematical rules:
- - yields +
- + yields -
+ - yields -
+ + yields +
The following arithmetic operators are allowed:
+ addition ASCII 043 dec
- subtraction ASCII 045 dec
* multiplication ASCII 042 dec
/ division ASCII 047 dec
Any other type of operators or other characters will generate an error.
The precision parameter optionally specifi es the number of decimals in
the result of the calculation. The result will be truncated accordingly. For
example, if the number of decimals is specifi ed as 5, the result 5.76123999
will be presented as 5.76123.
The result of a FLOATCALC$ function can be formatted using a
FORMAT$ function.
Examples Addition:
A$ = "234.9"
B$ = "1001"
PRINT FLOATCALC$ (A$,"+",B$,5)
yields:
1235.90000
Subtraction:
A$ = "234.9"
C% = 2
PRINT FLOATCALC$ (A$,"-",100.013,C%)
yields:
134.88