Casio FX-795P - VAL (Simple character variable); STR$ (Numeric expression)

CHAPTER7
Command
Reference
V
AL
(Simple
character
variable)
©
a
:
Function:
f
Converts
characters
in
a
simple
character
variable
into
a.numeric
value.
Parameter:
.
Simple
character
variable:
An
array
character
variable
cannot
be
used.
Explanation:
:
1)
Converts
characters
in
a
simple
character
variable
into
a
numeric
value.
2).When
the
content
of.
a
character
variable
includes
+,
-,
*,
E
or
E
,
it
is
converted
into
a
numeric
value
as
it
is.
When
A$
=
“-12.3”,
VAL(A$)
>
-12.3
3)
When
the
content
of
a
character
variable
starts
with
a
character
other
than
a
numeral,
+,
-,
or
*
,
an
error
occurs.
When
A$
=
“A45”,
VAL(AS)
>
error
(Error
2)
4)
When
a
character
other
than
a
numeral
is
inserted
in
the
middle,
only
the
part
before
this
character
is
converted
to
a
numeric
value.
When
A$
=
“78A9”,
VAL(AS)
>
78
Example:
10 Z$=*123"
2@
PRINT
VAL(Z$)+45
3@ END
*If
this
program
is
executed,
the
numeric
values
123
and
45
will
be
added
and
168
will
be
displayed.
176
7-3 Character Functions
ST
R
$
(Numeric
expression)
®
Function:
Converts the value of a numeric expression into a character string.
Parameter:
Numeric expression: Numeric value, calculation expression, numeric varia-
ble, numeric array variable.
Explanation:
1) Converts the value of a numeric expression into a character string.
2) When the numeric expression is a calculation expression, the calculation
: result:is converted into a character string.
3) When a numeric expression is positive, the sign digit is deleted and only the
numerals are converted.
Example:
18 A=123
2@ PRINT STRS(A)+°45”
30 END
*If this program is executed, character strings “123” and “45” will be. con-
nected and “12345” will be displayed. (Same as “123” + “45”)
177