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Radio Shack TRS-80 PC-3

Radio Shack TRS-80 PC-3
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Calculator Mode
or
5 +
(2
*
3)
In
general,
any
of
the
above expressions can be used in
the
calculator
mode,
as well as
in
programming
a BASIC
statement.
In
the
RUN
mode,
an
expression
is
computed
and
displayed
immediately.
For
example:
(5)3)
AND
(2<6)
The
1
means
that
the
expression
is
True.
1 .
Functions
Functions
are special
components
of
the
BASIC language which
take
one
value
and
transform
it
into
another
value.
Functions
act
like variables
whose
value
is
determined
by
the
value
of
other
variables
or
expressions. ABS
is
a
function
which
produces
the
absolute
value
of
its
argument.
ABS
{-5}
ABS (6)
is
is
5
6
LOG
is
a
function
which
computes
the
log
to
the
base 10
of
its
argument.
LOG (100)
LOG (1000)
is
is
2
3
56

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