128K Electronic Organizer
(650-0841)                 Calculator                 Faxback Doc. # 17673

You can use the EC-359 to do standard arithmetic calculations, as well as
memory, square root, and percent calculations.

Press CALC/CE to begin using the calculator.  The calculator screen appears
with the following information.

MEMORY -- indicates the value in memory

Epsilon sign-- indicates the sum of the calculation

ITEM NO: -- indicates the total number of calculation lines (up to 120)

Press CALC/CE to cancel the last entry.  To clear the display for the next
calculation, repeatedly press CALC/CE.

NOTE:  If the result of a calculation is longer than 10 digits, or if you
       attempt to divide by 0, OVERFLOW ! appears.  Press CALC/CE.  ERROR
       appears on both sides.  Then press CALC/CE again to clear the
       display.

CALCULATION TIPS

    Press division sign (per addendum) to do division calculations, the 
    division symbol appears on the display.

    If you enter the wrong function symbol (+.-.x, or division), simply 
    press the correct one to replace it.

    Press the solid ^ to scroll backward or the solid v to scroll forward
    through the calculations one line at a time (up to 120 lines).

    Press ^ (LAST) or v (NEXT) to scroll backward or 
    forward through each page of calculations.

STANDARD CALCULATIONS

For standard calculations, press the keys in the order they appear in the
arithmetic operation.  For example:

You press:              You see:

3 + 4 =                    7.

8 X 3 - 4 =                20.

6 divide by 3 + 2           4.
 

SQUARE CALCULATIONS

Here's how to perform square calculations.

What is 4 squared?

You press:              You see:

4x=                       16.


MEMORY CALCULATIONS

The memory calculation feature lets you easily do multi-step calculations.

For memory calculations, press:

    MC to clear the memory.

    MR to recall (display) the value in the memory.

    M- to total a calculation and subtract the total from memory.

    M+ to total a calculation and add the total to memory.

For example:

You press:              You see:

4 x 5 M+                 M+ 20.

28 + 2 M+                M+ 30.

7 - 2 M-                 M-  5.

75 divide by 5 M+        M+ 15.

MR                       MR 60.

PERCENT CALCULATIONS

Perform percent calculations as shown in the following examples.

What is 12 percent of 150?

You press:              You see:

150 x 12%               %   18.

What percentage of 880 is 660?

You press:              You see:

660 divide by 880%        %  75.

What do you get when you subtract 3 percent from 120?

You press:              You see:

120 - 3%                % 116.4

What do you get when you add 3 percent to 120?

You press:              You see:

120 - 3%                % 123.6


(CS/all-10/27/95)