EC-2035 Fraction Calculator
(650-0529)                 General Guide              Faxback Doc. # 33487

General Guide

About the Display Symbols

The display shows up to 8 digits of the numbers you input and the results
of calculations you perform.  In addition, a variety of useful indicators
and symbols appear to let you know what kind of operation is being
performed.

Indicator          Meaning

[FIX]              Number of decimal places is fixed.

[Simp]             Displayed fraction can be simplified.

[R]                Remainder of division calculation

[ , ]              3-digit separator for integer (the part to the left of
                   the decimal place).

[ ( ) ]            Calculation uses parentheses.

[M]                A value is stored in memory (page 125).

[E]                Error.  Further operation is impossible until the error
                   is cleared.

[ - ]              Negative

[K]                Constant calculation in progress (page 101).

[ + ]              Addition calculation in progress.

[ - ]              Subtraction calculation in progress.

[X]              Multiplication calculation in progress.

[ / ]              Division calculation in progress.

[R/]               Division calculation with remainder in progress.

[ ^ ]              Power calculation in progress.

[ = ]              [ = ] pressed to produce result.

The word "negative" means a number that is less than zero, like -2.

How calculations that Use Parentheses Are Displayed.

You can perform calculations with up to 18 levels of nested parentheses.
Any time you press [ ( ], the indicator "( )" appears on the display, along
with a value that shows how many levels of parentheses are nested (from
"[01 to "[18"), and the value 0.

*  The "( )" indicator disappears from the display when you press [ ) ] to
   close the last level of nested parenthesis.

About Exponential Display Format

Your calculator can show values up to 8 digits long.  It can handle values
greater than 99,999,999 and smaller than 0.0000001 but using an exponential
format, the position of the decimal point is indicated as multiplication by
an exponent.

For example, 1.234 x 10^3 is the same as 1234 (because x 10^3 means you
should move the decimal three places to the right).

Using 10 to a negative power moves the decimal point to the left.  For
example, 1.234 x 10^-3 is the same as 0.001234.

Look at the following examples.

1.  Main display (these leftmost digits are called the most significant or
    high-order digits)

2.  Exponent display (a positive exponent indicates how many places to
    move the decimal to the right)

3.  Main display (these leftmost digits are called the most significant or
    high-order digits)

4.  Exponent display (a negative exponent indicates how many places to
    move the decimal to the left)

    The main display shows the five most significant digits that are
    multiplied by the exponent value.

    The exponent can be in the range of -99 to 99.

    Whenever the exponent becomes less than -99, the value on the main
    display becomes zero.


(BR/EB 6/6/96)