EC-374 My Super Magic Diary
(650-0837) Calculation Mode Faxback Doc. # 31609
Two calculation modes let you perform calculations.
USING THE CALCULATOR
To Enter the Calculator Mode
Highlight SYMBOL on the Main Menu, then press EXE.
The following display indicators appear in the Calculator Mode.
M= with a value: Value is stored in independent memory.
K: Constant calculation is being performed.
E: Calculation error (see "Making Corrections", below, for information
about clearing errors).
Inputting a value then pressing an operator key (+ - x /) twice makes the
value a constant
Pressing > shifts the displayed value to the right, deleting the rightmost
digit.
MAKING CORRECTIONS
To clear only the most recent input and continue the calculation using
previous input, press C/CLEAR. This operation also clears calculation
errors.
To clear the entire calculation (and start over again), press AC/ON.
This operation also clears calculation errors.
To change an operator (+ - x /) simply input the correct operator.
To clear the independent memory contents; press MC (memory clear).
ABOUT CALCULATION CAPACITY
The following conditions cause "E" to appear to indicate that the capacity
of the calculator has been exceeded.
Whenever the integer part of a result (whether intermediate or final)
is longer than 10 digits.
Whenever the integer part of a total being accumulated in independent
memory is longer than 10 digits.
Even if this happens, independent memory contents are protected, and
you can recall the total accumulated up to that point by pressing MR
(memory recall) after clearing the error.
Calculation Examples
Example Operation Display
[AC] 0.
53+123-63= 53[+]125(ERROR) 125.
[C]123 123.
[-]63[=] 113.
963x(23-56) 23[-]56[x]963[=] -31779.
(56x3-89)/5.2+63= 56[X]3[-]89[/]5.2[+]63[=] 78.19230769
123456x741852= 123456[x]741852[=] E 9.158608051
[C] 9.158608051
[AC] 0.
(Sq.Root)3x5= 3[Sq.Root][x]5[=] 8.660254035
12+23= 23[+][+]12[=] K+ 35.
-45+23= 45[+/-][=] K+ -22.
78+23= 78[=] K+ 101.
7-5.6= 5.6[-][-]7[=] K- 1.4
2-5.6= 2[=] K- -3.6
2.3x12= 12[x][x]2.3[=] Kx 27.6
4.5x12= 4.5[=] Kx 54.
45+9.6= 9.6[/][/]45[=] K- 4.6875
78+9.6= 78[=] K+ 8.125
12% of 1500 1500[x]12[%] 180.
Percentage of 660 divided by 880 660[/]880[%] 75.
15% add-on of 2500 2500[x]15[%][+] 2875.
25% discount 0f 3500 3500[x]25[%][-] 2625.
What will the selling price 480[+]25[%] 640.
and profit be when the purchas- [-] 160.
ing price of an item is $480 (Profit)
and the profit rate to the
selling price is 25%?
4% mark-down of 130 130[+]4[+/-][%] 125.
If you made $80 last week and 100[-]80[%] 25.
$100 this week, what is the
percent increase?
80x9=720 [AC][MC]80[x]9[M+] M=720 720.
(-) 50x6=300 50[x]6[M-] M=420 300.
(+) 20x3= 60 20[x]3[M+] M=480 60.
_____________
480 [MR] M=480 480.
CONVERSION MODE
This unit comes with six currency conversion pairs. You can change these
to suit your own needs.
Built-in Conversion Pairs
The built-in conversion pairs are pre-programmed with rates. You must
change these frequently to make sure that calculations are accurate.
If you do not change the preset rate, the message "NOTICE! Change
preset Rate Before Using!" appears on the display when you enter the
Conversion Mode. Press any key to clear this message.
To Enter the Conversion Mode
Highlight SYMBOL on the Main Menu, then press EXE.
To set a Conversion Rate:
Example
To set a rate of 1489 Italian lira to the U.S. dollar.
1. Enter the Conversion Mode.
2. Use /\ or \/ to choose the conversion pair whose rate you want to set.
* Here we will select Italian lira ($1,=pound 0.5)
3. Press FUNCTION.
4. Highlight "Rate Set," then press EXE.
5. Press EXE.
* This causes the currently set rate to appear.
6. Input the new rate.
1 4 8 9
7. Press EXE.
* If you want to leave the currently set rate as it is, press EXE without
inputting a new rate.
To Change a Currency Pair
Example
To change the dollar/German mark conversion to a dollar/peso conversion.
1. Enter the Conversion Mode.
2. Use /\ or \/ to choose the pair you want to change.
* Here we will select German marks ($.=DM 1.5).
3. Press FUNCTION.
4. Highlight "Rate Set," then press EXE.
5. Press EXE.
* This causes the currently set rate to appear.
6. Input the new rate.
1 4 8 9
7. Press EXE.
* If you want to leave the currently set rate as it is, press EXE without
inputting a new rate.
To Change a Currency Pair
Example
To change the dollar/German mark conversion to a dollar/peso conversion.
1. Enter the Conversion Mode.
2. Use /\ or \/ to choose the pair you want to change.
* Here we will select German marks ($.= DM 1.5).
3. Press FUNCTION.
4. Highlight "Edit," then press EXE.
* A flashing cursor appears on the display.
5. Because we do not want to change the dollar part of the currency pair
press EXE.
* If you want to change the dollar part, input the change before pressing
EXE.
6. Input the desired text for the other side of the currency pair.
* Here you could input "MEX$" to indicate Mexican pesos.
* You can input up to four characters.
7. After you finish, press EXE.
8. Input the value you want to use for the left side (dollar in our
example). Press EXE to register your input.
* Press EXE without inputting anything if you do not want to change the
current setting.
9. Input the value you want to use for the right side (Mexican peso in
our example), then press EXE to register your input.
To Convert from One Currency to Another
Example
Find out how many French francs $98.50 is worth when the exchange rate is
5 francs to the dollar.
1. Enter the Conversion Mode.
2. Use /\ or \/ to choose the conversion pair you want to use.
* Here we will select French francs ($1 = FFr 5).
3. Input the amount in dollars.
98.5
4. Press EXE.
To Convert in the Opposite Direction
Example
Find out how many U.S. dollars FFr 98.50 is worth when the exchange rate
is 5 francs to the dollar.
1. Enter the Conversion Mode.
2. Use /\ or \/ to choose the conversion pair you want to use.
* Here we select French francs ($1.=FFr5).
3. Press FUNCTION.
4. Highlight "Reverse," then press EXE.
5. Input the amount in francs.
98.5
6. Press EXE.
To Use a Conversation Result in a Calculation
Example
Convert to German marks the total price of five items purchased at $20
each, when the exchange rate is DM1.5 to the dollar.
1. Enter the Conversion Mode.
2. Use /\ or \/ to choose the conversion pair you want to use.
3. Input the dollar cost of one item, then convert it to German marks.
.2 0 EXE.
4. Perform the calculation.
x 5 =
* The above operation produces a result of DM150.
(EB 4/1/96)
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