43
If you use a setting of only
Fraction 2
to
perform this, you will find to your amazement
that
1/3 + 4/5 = 8/7
, whereas using
Fraction 6
gives the correct answer.
The reason for this ‘error’ is that the
1/3
and
4/5
were converted to
decimals and added to give
1.133333
…. This was converted back to a
fraction to give
8/7
(
1.1428..
) matching sufficiently closely in
Fraction
2
to be accepted.
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The
HOME
page maintains a record of all your calculations called the History.
You can re-use any of the calculations or their results in subsequent
calculations.
Try this for yourself now. Type in at least four
calculations, pressing the
ENTER
key after
each one to tell the calculator to perform the
calculation.
You will now be looking at a screen similar to the one on the right (except
probably with different calculations).
If you now press the up arrow key, a
highlighted bar moves up the screen. When
you reach the top of the screen the previous
calculations will scroll into view. Pressing
SHIFT
up-arrow takes the highlight to the top
in one movement.
COPYing calculations
You may have noticed that as soon as the
highlight appeared so did two labels at the
bottom of the screen. If you now press the
screen key under
you will find that the
highlighted calculation will be copied on the
edit line. This is shown in the screen shot on
the right.
