Canon F-718SGA Leaflet

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19

20

  Omit the multiplication sign and final close parenthesis.

  Press         to switch a calculation result between fraction and 

decimal format.

  Press                 to switch a calculation result between 

improper fraction and mixed fraction format.

  Result will be displayed in decimal format automatically 

whenever the total digit of a fractional value (integer + 

numerator + denominator + separator marks) exceeds 10. 

  As a fraction calculation is mixed with decimal value, the 

result will be displayed by decimal format.

*1. Omit multiplication sign (x)

 

-  Input before an open parentheses        : 1 x (2+3)

 

-  Input before scientific functions that includes 

parenthesis: 2 x cos(30)

 

-  Input before Random number function  

 

-  Input before Variable (A, B, C, D, X, Y, M), π, 

е

*2. Scientific functions come with the open parenthesis. 

Example: sin(, cos(, Pol(, LCM(…. You need to input the 

argument and the close parenthesis       .

*3. Omit the last close parenthesis before the        ,        , 

 

       ,              .

  Insert and overwrite Input mode

In Line mode, you can use INSERT        or overwrite mode 

for inputting.

 

-  In Insert mode (Default input mode), the cursor is a 

vertical flashing line “ | ” for inserting a new character.

 

-  In overwrite mode, press                key to switch the 

cursor to a flashing horizontal ( _ ) and replace the 

character at the current cursor position.

In Maths mode, you can only use the insert mode.

Whenever the display format changes from Line mode to 

Maths mode, it will automatically switch to the insert mode.

 Arithmetic Calculations
•  To calculate with negative values (exclude the negative 

exponent) enclose then with parentheses.

•  This calculator supports 99 levels of parenthetical 

expression.

  Press                to enter COMP mode.

  During the busy calculation, the calculator shows only 

the indicators (without any calculation result). You can 

press        key to interrupt the calculating operation.

1. Pull out the battery insulation sheet, then the battery will 

be loaded.

2. Press                                           to reset the calculator.

Power ON: When         is pressed.

Power OFF:                are pressed.

  When the calculator is not used for about 7 minutes, it 

will automatically power off.

 Display Contrast Adjustment
   Press                            (5:      CONT      ), enter the 

Display Contrast Adjustment screen.

  Press       to make the display contrast darken.

  Press       to make the display contrast lighten.

  Press         or         to confirm and clear the screen.

  To initialize the LCD contrast, press

          outside the Display Contrast Adjustment screen.

<Status Indicators>
S 

: Shift key

A 

: Alpha key

M 

: Independent memory

STO 

: Store memory

RCL 

: Recall memory

STAT 

: Statistics mode

D 

: Degree Mode

R 

: Radian Mode

G 

: Gradient Mode

FIX 

: Fixed-decimal setting.

SCI 

: Scientific Notation

LINE 

: Line Display mode

 

: Up Arrow

 

: Down Arrow

Disp 

: Multi-statements Display

PRINTED IN CHINA

Open or close the cover by sliding as shown in the figure.

 Mode Selection
   Press         to enter the Calculation Mode Selection 

screen.

  Press        ,        ,        to select the calculation mode.   

   To select the angle unit [3] Deg, [4] Rad or [5] Gra

  [3] Deg: Angle unit in Degree

  [4] Rad: Angle unit in Radian

  [5] Gra: Angle unit in Gradient

  90º =     radians = 100grads

  To select display digit or notation [6] Fix, [7] Sci or 

  [6] Fix: Fixed Decimal, [Fix 0~9?] appears, specify the 

number of decimal places by pressing [0] – [9].

  Example: 220 ÷ 7  = 31.4286 (FIX 4)

   

  

= 31.43 (FIX 2)

  [7] Sci: Scientific Notation, [Sci 0~9?] appears, specify 

the number of significant digits by pressing [0] – [9].

 Example: 220 ÷ 7  = 3.1429 x 10

1

 (SCI 5)

   

 

= 3.143 x 10

1

 (SCI 4)

  [8] Norm: Exponential Notation, [Norm 1~2?] appears, 

specify the exponential notation format by pressing [1] or 

[2].

  Norm 1: Exponential notation is automatically used for 

integer values with more than 10 digits and decimal 

values with more than TWO decimal points.

  Norm 2: Exponential notation is automatically used for 

integer values with more than 10 digits and decimal 

values with more than NINE decimal places.

  Example: 1 ÷ 1000   = 1 x 10

-3

 (Norm 1)

   

 

= 0.001 (Norm 2)

  To select the fraction format [1] a b/c or [2] d/c

  [1] a b/c: specify Mixed fraction display

  [2] d/c: specify Improper fraction display

  To select the statistical display format [3] STAT 
  ([1] ON or [2] OFF)

  [1] ON: Show FREQ (Frequency) Column in Statistical 

Data Input Screen

  [2] OFF: Hide FREQ (Frequency) Column in Statistical 

Data Input Screen

  To select the decimal point display format [4] Disp 

  [1] Dot: specify dot format for Decimal point result display

  [2] Comma: specify comma format for Decimal point 

result display

  To Adjust Display contrast [5]      CONT    

  See “Display Contrast Adjustment” section.

   Initial mode is COMP mode.

 Calculator Set-up Menu
   Press                 to enter the Calculator Set-up Menu; 

press       /       for next / previous page.

  To select the calculator input & output format [1] 

  [1] Maths – (Maths mode): The majority of calculation 

input and output (e.g. Fraction, pi, square root 

number) are shown in Mathematics textbook format. 

  [2] Line – (Line mode): The majority  

  of calculation input and output are 

  shown in the lines format. And 

  “LINE” icon will be shown.

  For the STAT mode, the Input & 

  Display format will switch to Line 

  mode automatically.

COMP  Normal calculation 

STAT 

Statistical calculation 

STAT

TABLE  Function Table calculation 

 Before Using the Calculator
  Check the current Calculation Mode

Be sure to check the status indicators that indicate the 

current calculation mode (COMP, STAT, TABLE), display 

formats setting and angle unit setting (Deg, Rad, Gra)

  Return to initial setup

Pressing                                      (YES)         to return the 

initial calculator setup

  Calculation mode   

: COMP

  Input/Output Format  

: Maths

  Angle unit 

 

: Deg

  Display Digits 

 

: Norm 1

  Fraction Display Format 

: d/c

  Statistical Data Input 

: OFF

  Decimal Point format 

: Dot

This action will not clear the variable memories.

  Initialize the calculator

When you are not sure of the current calculator setting, you 

are recommended to initialize the calculator (calculation 

mode “COMP”, angle unit “Degree”, and clear reply and 

variable memories), and LCD contrast by pressing     

        (All)        (YES)        . 

 Input Capacity
F-718S allows you to input a single calculation up to 99 

bytes. Normally, one byte is used as each time you press 

one of the numeric keys, arithmetic keys, scientific function 

keys or        . Some functions require 4 – 13bytes.

       ,        , and the direction keys will not use up any bytes.

When input capacity is less than 10bytes, the input cursor 

will change from “    ” to “    ” that notifying the memory is 

running now. 

 Input Editing
  New Input begins on the left of display. If input data are 

more than 15 characters, the line will scroll to the right 

consecutively. You can scroll back to the left by using       

and      to review the input

  In Line mode, press       to let the cursor jump to the 

beginning of inputting, while       will jump to the end.

  In Maths mode, press       to let the cursor jump to the 

beginning of inputting while it is at the end of the input 

calculation. Or press       to let the cursor jump to the end 

of inputting while it is at the beginning of the input 

calculation.

Number of Digits for 
Internal Calculation
Precision*

Calculation Range

Up to 18 digits

±1 at the 10th digit for a single calculation. 
±1 at the least significant for exponential 
display
±1 

× 10

–99

 to ±9.999999999 

× 10

99

 or 0

 Inputting and Display result in Maths Mode
   In Maths Mode, the Input and display result of fraction or 

certain functions (log, x

2

, x

3

, x ,     , 

3

    ,     , x

-1

, 10 , e , 

Abs) is shown in Handwriting/Mathematics format.

(1) Some input expressions cause the height of a 

calculation expression to be greater than one display 

screen. Maximum input capacity: 2 display screen 

 

(31 dots x 2).

(2) Calculator memory limits how many functions or 

perentheses can be input in any single expression. In 

this case divide the expression into multiple parts and 

calculate separately.

(3) If part of the expression you input is cut off after 

calculation and in the result display screen you can 

press      or      to view the full expression.

•  Errors are cumulative in the case of consecutive 

calculations, this is also true as internal consecutive 

calculation are performed in the case of ^(x

y

), 

x

√y, 

3

√, x!, 

nPr, nCr , etc. And may become large. 

Calculation results may be displayed using      when all of 

the following cases:-

1. When intermediate and final calculation results are 

displayed in the following form:   

 

 

2. When the number of terms in the intermediate and final 

calculation result is one or two.

  In the same precedence level, calculations are 

performed from left to right.

  Operation enclosed within parentheses is performed 

first. When a calculation contains an argument that is a 

negative number, the negative number must be enclosed 

within parentheses.

Example:
  

 

 

–2

2

 = –4

  

 

 

(–2)

2

 = 4

  When same priority commands are mixed into one 

calculation.

Example 1:
  

1 ÷ 2    = 0.1591549431

Example 2:
  

2    A

  

1 ÷ 2A =   

DEG 

0    |x| <9

×10

9

RAD 

0    |x| <157 079 632.7

GRA 

0    |x| <1x10

10

DEG 

0    |x| <9

×10

9

RAD 

0    |x| <157 079 632.7

GRA 

0    |x| <1x10

10

DEG 

Same as sinx, except when |x| =(2n-1)

×90

RAD 

Same as sinx, except when |x| =(2n-1)

×   /2

GRA 

Same as sinx, except when |x| =(2n-1)

×100

0    |x|    9.999 999 999x10

99

0    |x|    4.999 999 999x10

99

1    x    4.999 999 999x10

99

0    |x|    9.999 999 999x10

99

0    |x|    9.999 999 999x10

-1

0< x     9.999 999 999x10

99

-9.999 999 999 x10

99

    x    99.999 999 99

-9.999 999 999 x10

99

    x    230.258 509 2

0    x <1x10

100

|x|<1x10

50

|x| 2.154 434 69x10

33

|x|<1x100

100

,x   0

|x|<1x10

100

0    x    69 (x is an integer)
0    n < 1x10

10

, 0    r    n (n,r are integers)

1    {n!/((n-r)!) < 1x10

100

0    n < 1x10

10

, 0    r    n (n,r are integers)

1    n!/r! < 1x10

100

 or 1    n!/(n-r)! < 1x10

100

sinx

cosx

tanx

sin

-1

x

cos

-1

x

tan

-1

x

sinhx

coshx

sinh

-1

x

cosh

-1

x

tanhx

tanh

-1

x

logx/lnx

10

x

e

x

√x
x

2

x

3

x

-1

3

√x
x!

nPr

nCr

 

0    |x|    1

0    |x|    230 258 509 2

|x|,|y|    9.999 999 999x10

99

   x

2

+y

2

    9.999 999 999x10

99

0     r     9.999 999 999x10

99

   : Same as sinx
|a|,b,c <1x10

100

0    b,c
The display seconds value is subject to an error of 
+/-1 at the second decimal place
|x|<1x10

100

Deciaml      Sexagesimal Conversions
0°0

′0″    |x|    9999999°59′59″

x>0: -1x10

100 

< ylog x < 100

x=0: y>0
x<0: y=n,m/(2n+1) (m,n are integers)
However: -1x10

100

<ylog|x|<100

y>0: x   0, –1x10

100

<1/x logy<100

y=0:x>0
y<0:x=2n+1,(2n+1)/m  (m≠0;m,n are integers)
However: -1x10

100

<(1/x)log|y|<100

Total of integer, numerator, and denominator must be 
10 digits or less (including division marks).
0    a<1x10

10

, 0    b<1x10

10

  (a,b should be positive 

integers or 0)
Result generates a 3 digits pseudo random 
number(0.000~0.999)
0<x, y, z    9.999 999 999x10

12

 (positive integers)

Default result when x, y, z=0
0<x, y, z    9.999 999 999x10

12

 (positive integers)

Default result when x, y, z=0
0<x,y    9.999 999 999x10

12

 (positive integers)

0    Q    999 999 9999, 0    r    999 999 9999 (Q,r are 
integers)
Default result when x=0

Pol(x,y)

Rec(r,  )

°′ ″

 

 ° ″

^(x

y

)

x

√y

a b/c

i~Rand(a,b)

Rand

LCM(x,y,z)

GCD(x,y,z)

Q…r(x,y)

|x|<1x10

100

|x|<1x10

100

|FREQ|<1x10

100

|x|<1x10

100

|y|<1x10

100

|FREQ|

<1x10

100

Abs

Two-variable 

Statistical 

calculation

One-variable 

Statistical 

calculation

Fractions: a b/c, d/c
Prefix symbol: (–) (negative sign)
Statistical estimated value calculation:   
Multiplication where sign is omitted: Multiplication sign 
omitted immediately before    , e, variables (2   , 5A,    A, 
etc.), functions with parentheses (2    (3), Asin(30), etc.)
Permutations, combinations: nPr, nCr
Multiplication and division: 

×, ÷

Addition and subtraction: +, –
Calculation ending instruction: =, M+,M-  STO(store 
memory),FMLA

5th
6th
7th
8th

9th
10th
11th
12th

 

This calculator uses memory areas, called “stacks”, to 

temporarily store numeric value (numbers) and commands 

(+, –, x…) according to their precedence during calculations.

The numeric stack has 10 levels and command stack has 

128 levels. A stack error [Stack ERROR] occurs whenever 

you try to perform a calculation that exceeds the capacity of 

stacks.

Calculations are performed in sequence according to “Order 

of Operations”. After the calculation is performed, the stored 

stack values will be released.

 Error Messages and Error locator
The calculator is locked up while an error message is shown on 

the display to indicate the cause of the error.

  Press         to clear the error message, then return to the 

initial display of latest mode.

  Press       or       to display input expression with the cursor 

positioned next to the error.

  Press         to clear the error message, clear the replay 

memory history and return to the initial display of the latest 

mode.

Recall memory (A, B, C, D, 0-9), Rand
Calculation within parentheses ( ).
Function with parenthesis that request the input 
argument to the right Pol(, Rec( , sin(, cos(, tan(, 
sin

–1

(, cos

–1

(, tan

–1

(, sinh(, cosh(, tanh(, sinh

–1

(, 

cosh

–1

(, tanh

–1

(, log(, ln(, e^(, 10^(,   (, 

3

   (, Abs(, 

ROUND(, LCM(, GCD(, Q…r(, i~Rand(,
Functions that come after the input value preceded by 
values, powers, power roots:
x

2

, x

3

, x

–1

, x!, ° ’ ”, °, r, g, ^(, 

x

   (, Percent %, log

a

b, EXP

1st Priority
2nd
3rd

4th

 Order of Operations
This calculator will automatically determine the operation 

priority of each individual command as follows:-

• The intermediate or final 

result is outside the 

allowable calculation 

range.

• An attempt to perform a 

calculation using a value 

that exceeds the 

allowable input range.

• An attempt to perform an 

illogical operation 

(division by zero, etc.)

Check the input values 

and make sure they are 

all within the allowable 

ranges, Pay special 

attention to values in any 

using memory areas

(-2.5)

2

                              

4

E

75x-2

E

-79

25

4

1

1250

(-2.5)

2

(4 x 10

75

)(-2 x 

10

-79

)

•  There are 17 memory variables (0 – 9, A – D, M, X and 

Y), which store data, results, or dedicated values.

•  Store values into memory by pressing              + Memory 

variable.

•  Recall memory values by pressing        + Memory 

variable.

•  Memory content can be cleared by pressing    

  + Memory variable.

Example:  23 + 7    A (30 store into A), calculate 2 sinA 

 

and clear memory A.

•  Independent memory       uses the same memory area 

as variable M. It is convenient for calculating cumulative 

total by just pressing        (add to memory) or      

(subtract from memory)

•  Memory contents are retained even when the calculator 

is powered off.

•  Clear independent memory (M) by pressing             

•  Clear all memory values by pressing                2(MCL) 

•  The input values or the most recent calculation result will 

be automatically stored into Answer memory whenever 

you press       ,              ,       ,             ,             . Answer 

memory can hold up to 18 digits.

•  Recall and use the latest stored Answer memory by 

pressing        .

•  Answer memory is not updated as an error operation 

had been performed.

•  Answer memory contents can be maintained even if 

pressing       , changing the calculation mode, or turning 

off the calculator.

23+7     A
 30
2sin(A
 1
0     A
 0

23 + 7      A

2 x sin A = 1

Clear memory

Example: 2 x log 100 x (1+3) = 16

Including         *1, 
        *2,        *3

Omitting         *1, 
Omitting         *3

2xlog(100) x (1+3)

16

*2

*1

2log(100)(1+3

                        16

x, y, x1, x2

ˆ ˆ ˆ ˆ

1

4

• The capacity of the 

numeric stack or 

operator stack is 

exceeded.

• Simplify the calculation.

• Divide the calculation 

into two or more 

separate parts.

An attempt to perform an 

illegal mathematical 

operation.

Press      or      to display 

the cursor at the location 

of the error, make 

appropriate corrections

The calculation result of 

Function Table mode 

parameters caused more 

than 30 x-values to be 

generated for a table

Narrow the table 

calculation range by 

changing the start, end, 

and step values, and try 

again.

Ans

2

 335241

789900-Ans
 454659

123 + 456      M+,
Ans

2

 = 335,241

789900 – Ans = 
454,659

Maths Mode

Line Mode

3_|2_|3

11_|3

 Fraction Calculations
The calculator supports Fraction calculation and the 

conversions between Fraction, Decimal point, Mixed fraction 

and Improper fraction.

•  Specify the fraction calculation result display format by either 

mixed fraction (a b/c) or improper fraction (d/c) in set-up 

menu.

•  At the default setting, fractions are displayed as improper 

fractions (d/c).

•  Mixed Fraction display result only available after set the (a 

b/c) in the setup menu.

11

3

2
3

3

2.333333333

1 + =

1

2

in Maths mode

(Fraction      Decimal)

(Decimal      Mixed 

Fraction)

 

*3

  Deleting and Correcting an Expression

In insert mode: Move the cursor to the right of the character 

or function that needs to be deleted, then press       . 

In overwrite mode: Move the cursor under the character or 

function being deleted, then press       .

Example: 1234567 + 889900

Method 1: Line/Maths 

mode - Insert mode

Method 2: Line mode - 

Overwrite mode

     12times

 

     13times

 

12|34567+889900

134567+889900

1234567+889900_

1234567+889900

134567+889900

Line/Maths mode - 

Insert mode

     6times

 

1234567+|889900

1234567+2|889900

820x25%
 205

750÷1250%

 60

To calculate 25% of 
820 (Maths mode)

The percentage of 
750 against 1250
(Maths mode)

 Degree-Minutes-Seconds Calculations
Use degrees (hours), minutes and seconds key to perform a 

sexagesimal (base-60 notational system) calculation or convert 

the sexagesimal value into decimal value.

86º37 º 34.2 º ÷ 0.7
 

 

123º45’6”

86º37 º 34.2 º ÷ 0.7
 123.7516667

2.3456
 

2º20’44.16”

86º37’34.2” ÷ 0.7 = 
123º45’6” (Maths mode)

123º45’6”     123.7516667
(Maths mode)

2.3456     2º20’44.16”
(Maths mode)

 

Power ON, OFF ........................................................................P. 4

 

Display Contrast Adjustment.....................................................P. 4

 

Mode Selection .........................................................................P. 4

 

Calculator Set-up Menu ............................................................P. 5

 

Before Using the Calculator ......................................................P. 7

 

Input Capacity ...........................................................................P. 8

 

Input Editing ..............................................................................P. 8

 

Inputting and Display result in Maths Mode ............................P. 11

 

Calculation Precision, Input Range.........................................P. 11

 

Order of Operations ................................................................P. 14

 

Calculation Stacks ..................................................................P. 16

 

Error Message and Error Locator ...........................................P. 16

 

Arithmetic Calculations ...........................................................P. 17

 

Memory Calculations ..............................................................P. 17

 

Fraction Calculations ..............................................................P. 19

 

Percentage Calculations .........................................................P. 20

 

Degree-Minutes-Seconds Calculations...................................P. 20

 

Reply & Multi-statements ........................................................P. 21

 

Square, Root, Cube, Cube Root, Power Root,

 

Reciprocal and pi ....................................................................P. 22

 

Logarithm, Natural Logarithm, Antilogarithm and logab..........P. 22

 

Angle Unit Conversion ............................................................P. 22

 

Trigonometry Calculations ......................................................P. 23

 

Permutation, Combination, Factorials and Random 

 

Number Generation ................................................................P. 24

 

Least Common Multiple and Greatest Common Divisor.........P. 25

 

Quotient and Remainder Calculations ....................................P. 26

 

Coordinate Conversion ...........................................................P. 26

 

Absolute Value Calculations ...................................................P. 27

 

Engineering Notation ..............................................................P. 27

 

Display Values Exchange .......................................................P. 28

 

Statistical Type Setection........................................................P. 29

 

Statistical Data Input ...............................................................P. 29

 

Editing Statistical Sample Data...............................................P. 30

 

Statistical Calculation Screen .................................................P. 31

 

Statistical Menu.......................................................................P. 31

 

Statistical Calculation Example...............................................P. 33

Press        

or       key

5

6

1 +

1

2

5

6

1 +

1

2

5

6

1 +

1

2

2 1

3

2

2.333333333

2.333333333

1

3

7

3

5

6

7

3

7

3

F-718SGA and F-718SG the top case, bottom case, 

battery cover and hard case in this product are made 

from recycled Canon copier plastic.

E-IE-410