Numeric Constants; Numeric Variables - Tandy 1000 Basic Reference Manual

Chapter 51
Basic
Concepts
Numeric Constants
To change the way BASIC stores a numeric constant, add one of
the following symbols to the end of the number. If BASIC must
shorten a number to meet the new requirements, it rounds the
number.
! declares a single precision number. For example, BASIC
stores the number 12.345678901234! as a single precision
number: 12.34568.
declares the number a single precision exponential number.
For example, BASIC stores the number 1.2E5 as a single
precision number: 120000.
declares a double precision number. For example, BASIC
stores the number 1.5# as a double precision number: 1.5.
BASIC does not expand constants when declaring them dou-
ble precision.
declares the number a double precision exponential number.
For example, BASIC stores the number 1.2D2 as a double
precision number: 120.
See the next section on converting numbers for important infor-
mation on converting from numbers to another precision.
-
E
#
D
Numeric Variables
BASIC initially classifies all numeric variables as single preci-
sion. You can declare variables as other than single precision in
2 ways:
Append a symbol to the variable name:
%
declares an integer variable. BASIC stores the value of
the variable as a n integer. I%, FT%, and COUNTER%
are samples of integer-declared variables.
declares a single precision variable. BASIC stores the
value of the variable as a single precision number. F!,
NM!, and BALANCE! are samples of variables declared
as single precision.
!
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