ENGLISH
F-718S/F-718SGA/ F-718SG/F-718SA
NOTES
F-718SGAand F-718SGthe top case, bottom case, battery cover and hard case in this product are made from recycled Canon copier plastic.
CONTENTS
DISPLAY (4-line Dot Matrix DISPLAY) | P. 3 |
GETTING STARTED | P. 4 |
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 |
INPUTTING EXPRESSIONS AND VALUES | P. 8 |
Input Capacity | P. 8 |
Input Editing | P. 8 |
Inputting and Display result in Maths Mode | P. 11 |
INPUT RANGE AND ERROR MESSAGE | P. 11 |
Calculation Precision, Input Range | P. 11 |
Order of Operations | P. 14 |
Calculation Stacks | P. 16 |
Error Message and Error Locator | P. 16 |
BASIC CALCULATIONS | P. 17 |
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 |
FUNCTIONAL SCIENTIFIC CALCULATIONS | P. 22 |
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 CALCULATIONS | P. 29 |
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 |
FUNCTION (x, y) TABLE CALCULATION | P. 34 |
BATTERY REPLACEMENT | P. 36 |
ADVICE AND PRECAUTIONS | P. 37 |
SPECIFICATIONS | P. 38 |
How to use the Slide Cover
Open or close the cover by sliding as shown in the figure.
OPENCLOSE
DISPLAY (4-line Dot Matrix DISPLAY)
<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 |
| Operation | Mode | LCD |
| Indicator |
| | |
| COMP | Normal calculation | |
| STAT | Statistical calculation | STAT |
| TABLE | Function Table calculation | |
Initial mode is COMP mode.
Calculator Set-up Menu
Press to enter the Calculator Set-up Menu; press / for next / previous page.
Press or key
To select the calculator input & output format [1] Maths or [2] Line
[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 | Maths mode |
of calculation input and output are | |
shown in the lines format. And | |
“LINE” icon will be shown. | |
For the STAT mode, the Input & | Line mode |
Display format will switch to Line | |
| LINE |
mode automatically. | |
| |
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 [8] Norm
[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 101 (SCI 5)
=3.143 x 101 (SCI 4)
[8]Norm: Exponential Notation, [Norm 1~2?] appears, specify the exponential notation format by pressing [1] or
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 or [2] Comma)
[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.
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
INPUTTING EXPRESSIONS AND VALUES
Input Capacity
F-718Sallows 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.
Omit the multiplication sign and final close parenthesis. Example: 2 x log 100 x (1+3) = 16
| | Operation 1: | Display 1 |
Including | *1, | | 2xlog(100) x (1+3) |
*2, | *3 | *1 | *2 |
|
| | |
| | | 16 |
| | *3 | |
| | Operation 2: | Display 2 |
Omitting | *1, | | 2log(100)(1+3 |
Omitting | *3 | | |
| | | 16 |
*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.
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
(1) Replace an entry (1234567 1234560)
(2) Deletion (1234567 | 134567) | |
| | | |
Method 1: Line/Maths | | 12times | 1234567+889900 |
mode - Insert mode | | | |
| | 134567+889900 |
| | | |
Method 2: Line mode - | | | 1234567+889900_ |
| | | |
Overwrite mode | | 13times | 1234567+889900 |
| | | |
| | | 134567+889900 |
| | | |
(3) Insertion (889900 | 2889900) | |
| | | |
Line/Maths mode - | | 6times | 1234567+889900 |
| | | |
Insert mode | | | 1234567+2889900 |
| | | |
Inputting and Display result in Maths Mode
In Maths Mode, the Input and display result of fraction or certain functions (log, x2, x3, x , , 3, , x-1, 10 , e, Abs) is shown in Handwriting/Mathematics format.
| Example in | Key in operation | | | Display |
Maths mode | | |
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Remark
(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.
INPUT RANGE AND ERROR MESSAGE
Calculation Precision, Input Range
Number of Digits for | Up to 18 digits |
Internal Calculation | |
| |
Precision* | ±1 at the 10th digit for a single calculation. |
| ±1 at the least significant for exponential |
| display |
| |
Calculation Range | ±1 × 10–99to ±9.999999999 × 1099 or 0 |
11
| | | | | | | | | | | | | | | | | 2 | | | | | | | | |
| Function Calculation Input Ranges |
|
|
| | | | | | | | | | | | | | | | | | | | | | | | | | |
Functions | | | | | | | | | | | | | | | | | Input Range |
| | DEG | | | | 0 | | x <9×109 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| sinx | RAD | | | | 0 | | x <157 079 632.7 |
| | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | GRA | | | | 0 | | x <1x1010 | |
| | | | | | |
| | DEG | | | | 0 | | x <9×109 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| cosx | RAD | | | | 0 | | x <157 079 632.7 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | GRA | | | | 0 | | x <1x1010 | |
| | | | | | |
| | DEG | | | | Same as sinx, except when x =(2n-1)×90 |
| tanx | RAD | | | | Same as sinx, except when x =(2n-1)× /2 |
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | GRA | | | | Same as sinx, except when x =(2n-1)×100 |
| sin-1x | 0 | | | x | | | | 1 | | | | | | | | | | | | | | | | |
| cos-1x | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| tan-1x | 0 | | | x | | | | 9.999 999 999x1099 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| sinhx | 0 | | | x | | | | 230 258 509 2 | | | | | |
| | | | | | | | | | | |
| coshx | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | |
| sinh-1x | 0 | | | x | | | | 4.999 999 999x1099 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| cosh-1x | 1 | | | x | | | 4.999 999 999x1099 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| tanhx | 0 | | | x | | | | 9.999 999 999x1099 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| tanh-1x | 0 | | | x | | | | 9.999 999 999x10-1 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| logx/lnx | 0< x | | | | 9.999 999 999x1099 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| 10x | -9.999 999 999 x1099 | | | x | | | 99.999 999 99 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| ex | -9.999 999 999 x1099 | | | x | | | 230.258 509 2 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| √x | 0 | | | x <1x10100 | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| x2 | x<1x1050 | | | | | | | | | | | | | | | |
| x3 | x 2.154 434 69x1033 | | | | | | | |
| x-1 | x<1x100100,x | | 0 | | | | | | | | | | | | |
| | | | | | | | | | | | | |
| | | | | | | | | | | | | |
| 3√x | x<1x10100 | | | | | | | | | | | | | | | |
| x! | 0 | | | x | | | 69 (x is an integer) | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| nPr | 0 | | | n < 1x1010, 0 | | r | | n (n,r are integers) |
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
| 1 | | | {n!/((n-r)!) < 1x10100 | |
| | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| nCr | 0 | | | n < 1x1010, 0 | | r | | | | n (n,r are integers) |
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
| 1 | | | n!/r! < 1x10100 or 1 | | | | n!/(n-r)! < 1x10100 |
| | | | | | |
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| | | | | | | | | | | | | | | | | 12 | | | | | | | | |
| | | | | | | | | | | | 3 | | | | |
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| Functions | | | | | | | | | | | | | | | | | | | | Input Range |
| Pol(x,y) | x,y | | | | | | 9.999 999 999x1099 | | |
| | | | | | | |
| | | x2+y2 | | | | | 9.999 999 999x1099 |
| | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | |
| Rec(r, ) | 0 | | | | r | | | | | | | 9.999 999 999x1099 | | |
| | | : Same as sinx | | |
| | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | a,b,c <1x10100 | | |
| °′ ″ | 0 | | | | b,c | | | | | | | | | | | | | | |
| The display seconds value is subject to an error of |
| | +/-1 at the second decimal place |
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | x<1x10100 | | |
| ° ″ | Deciaml Sexagesimal Conversions |
| 0°0′0″ | | | | x | | 9999999°59′59″ |
| | | | |
| | x>0: -1x10100< ylog x < 100 | | |
| ^(xy) | x=0: y>0 | | |
| x<0: y=n,m/(2n+1) (m,n are integers) |
| |
| | However: -1x10100<ylogx<100 |
| | y>0: x | | 0, –1x10100<1/x logy<100 |
| | | | |
| x√y | y=0:x>0 | | |
| y<0:x=2n+1,(2n+1)/m (m≠0;m,n are integers) |
| | However: -1x10100<(1/x)logy<100 |
| a b/c | Total of integer, numerator, and denominator must be |
| 10 digits or less (including division marks). |
| |
| | | | | | | | | | | | | | | | | | | | | | | | | |
| i~Rand(a,b) | 0 | | a<1x1010, 0 | | b<1x1010 | (a,b should be positive |
| integers or 0) | | |
| | | | | | | | | | | | | | | | | | | | | | | | |
| Rand | Result generates a 3 digits pseudo random |
| number(0.000~0.999) | | |
| | | |
| | | | | | | | | | | | | | | | | | | | | | | | |
| LCM(x,y,z) | 0<x, y, z | | 9.999 999 999x1012 (positive integers) |
| Default result when x, y, z=0 | | |
| | | |
| | | | | | | | | | | | | | | | | | | | | | | | |
| GCD(x,y,z) | 0<x, y, z | | 9.999 999 999x1012 (positive integers) |
| Default result when x, y, z=0 | | |
| | | |
| | | | | | | | | | | | | | | | | | | | | | | | |
| | 0<x,y | | | | | 9.999 999 999x1012 (positive integers) |
| Q…r(x,y) | 0 | | | | Q | | | | | 999 999 9999, 0 | | r | | 999 999 9999 (Q,r are |
| integers) | | |
| | | |
| | Default result when x=0 | | |
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | | | | | | | | | | | 13 | | | | |
| 4 |
| |
Functions | Input Range |
Abs | x<1x10100 |
One-variable | x<1x10100 |
Statistical | FREQ<1x10100 |
calculation |
Two-variable | x<1x10100 |
Statistical | y<1x10100 |
calculation | FREQ<1x10100 |
•Errors are cumulative in the case of consecutive calculations, this is also true as internal consecutive
calculation are performed in the case of ^(xy), x√y, 3√, x!, nPr, nCr , etc. And may become large.
Display of results using
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.
Order of Operations
This calculator will automatically determine the operation priority of each individual command as follows:-
1st Priority | Recall memory (A, B, C, D, 0-9), Rand |
| |
2nd | Calculation within parentheses ( ). |
| |
3rd | 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(, |
| |
4th | Functions that come after the input value preceded by |
| values, powers, power roots: |
| x2, x3, x–1, x!, ° ’ ”, °, r, g, ^(, x (, Percent %, logab, EXP |
| 14 |
5
5th | Fractions: a b/c, d/c | |
| | |
6th | Prefix symbol: (–) (negative sign) | |
| | |
7th | Statistical estimated value calculation: x,ˆ y,ˆ | x1,ˆ x2ˆ |
8th | Multiplication where sign is omitted: Multiplication sign |
| omitted immediately before , e, variables (2 | , 5A, A, |
| etc.), functions with parentheses (2 (3), Asin(30), etc.) |
| | |
9th | Permutations, combinations: nPr, nCr | |
| | |
10th | Multiplication and division: ×, ÷ | |
11th | Addition and subtraction: +, – | |
| |
12th | Calculation ending instruction: =, M+,M- STO(store |
| memory),FMLA | |
| | |
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:
–22= –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 = 14
15
6
Calculation Stacks
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.
Error Message | Cause | Action |
Math ERROR | • The intermediate or final | Check the input values |
| result is outside the | and make sure they are |
| allowable calculation | all within the allowable |
| range. | ranges, Pay special |
| • An attempt to perform a | attention to values in any |
| calculation using a value | using memory areas |
| that exceeds the | |
| allowable input range. | |
| • An attempt to perform an | |
| illogical operation | |
| (division by zero, etc.) | |
| | |
Stack ERROR | • The capacity of the | • Simplify the calculation. |
| numeric stack or | • Divide the calculation |
| operator stack is | into two or more |
| exceeded. | separate parts. |
| | |
Syntax ERROR | An attempt to perform an | Press or to display |
| illegal mathematical | the cursor at the location |
| operation. | of the error, make |
| | appropriate corrections |
| | |
Insufficient | The calculation result of | Narrow the table |
MEM | Function Table mode | calculation range by |
| parameters caused more | changing the start, end, |
| than 30 x-values to be | and step values, and try |
| generated for a table | again. |
| | |
| 16 | |
BASIC CALCULATIONS
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. |
Arithmetic Calculations
•To calculate with negative values (exclude the negative exponent) enclose then with parentheses.
•This calculator supports 99 levels of parenthetical expression.
| Example in | Key in operation | Display |
| Maths mode |
| | |
| (-2.5)2 | | (-2.5)2 |
| | | 25 |
| | | 4 |
| (4 x 1075)(-2 x | | 4E75x-2E-79 |
| 10-79) | | 1 |
| | |
| | | 1250 |
Memory Calculations
Memory Variables
•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.
17
8
| Example in | Key in operation | Display |
| Maths mode |
| | |
| 23 + 7 A | | 23+7 A |
| | | 30 |
| 2 x sin A = 1 | | 2sin(A |
| | | 1 |
| Clear memory | | 0 A |
| | | 0 |
Independent Memory
•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)
Answer Memory
•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.
| Example in | Key in operation | Display |
| Maths mode |
| | |
| 123 + 456 M+, | | Ans2 |
| Ans2 = 335,241 | | 335241 |
| 789900 – Ans = | | 789900-Ans |
| 454,659 | | 454659 |
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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.
| Improper Fraction | Mixed Fraction |
| (d/c) | (a b/c) |
Maths Mode | 11 | 3 | 2 | |
3 | | |
| 3 | |
Line Mode | 11_3 | 3_2_3 |
| | | | |
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.
Fraction Decimal point conversion
Example in | Key in operation | | | | Display | |
Maths mode | | | | |
| | | | | |
1 1 + | 5 = | 7 | | 1 | 1 | + | 5 | |
2 | 6 | 3 | | | 2 | | 6 | 7 |
in Maths mode | | | | | |
| | | | | 3 |
7 | 2.333333333 | 1 | 1 | + | 5 | |
3 | | | | | 2 | | 6 | |
(Fraction | Decimal) | | | | 2.333333333 |
2.333333333 2 | 1 | 1 | 1 | + | 5 | |
(Decimal | Mixed | 3 | | 2 | | 6 | 1 |
| | | | 2 |
Fraction) | | | | | |
| | | | | | | | 3 |
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Percentage Calculations
| Example in | Key in operation | Display |
| Maths mode |
| | |
| To calculate 25% of | | 820x25% |
| 820 (Maths mode) | | 205 |
| The percentage of | | 750÷1250% |
| 750 against 1250 | | |
| (Maths mode) | | 60 |
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.
Degree-Minutes-seconds Decimal points
| Example in | Key in operation | Display |
| Maths mode |
| | |
| 86º37’34.2” ÷ 0.7 = | | 86º37 º 34.2 º ÷ 0.7 |
| 123º45’6” (Maths mode) | | |
| | | | 123º45’6” |
| 123º45’6” | 123.7516667 | | 86º37 º 34.2 º ÷ 0.7 |
| (Maths mode) | | 123.7516667 |
| 2.3456 | 2º20’44.16” | | 2.3456 |
| (Maths mode) | | 2º20’44.16” |
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