Tandy 1000 Basic Reference Manual

Chapter 10 I BASIC Ke-ywords
VAL
Function
VAL(string)
Calculates the numerical value of string.
VAL is the inverse of the STR$ function; it returns the number
represented by the characters in
a string argument. This num-
ber may be integer, single precision,
or double precision, depend-
ing on the range
of values and the rules used for typing all
constants
.
VAL terminates its evaluation on the first character that has no
meaning in a numeric value.
If the string is nonnumeric or null, VAL returns a zero.
Ex ample s
PRINT VAL("1 00 DOLLARS")
prints 100.
PRINT VAL("1234E5")
prints 123400000.
Sample Programs
10 READ NAME$, CITY$, STATE$, ZIP$
20 IF VALCZIP$) < 90000 OR VAL(ZIP$) > 96699
THEN PRINT NAME$ TABC25) "OUT OF STATE"
30 IF VAL(ZIP$) > 90801 AND VAL<ZIP$) <= 90815
THEN PRINT NAME$ TAB(25) "LONG BEACH"
This program searches for zip codes within the specified ranges
to determine if they are within Long Beach or "out of state.''
334

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200