background image

Gu

10

Fraction calculations

D

The values are automatically displayed in decimal format when the
total number of digits for the fraction value (i num
denom separator) exceeds 10.

Example 1:

5

+ 1

2
3

 3 

 1 

 5 

Example 2:

+

1
2

1.6

 2 

 1.6 

D

The results of calculations mixing fractions and decimal values are
always displayed in decimal format.

Converting decimal values to fractions

D

Use the following operation to convert calculation results from
decimal values to fraction value.

D

Please note that the conversion can take up to 2 seconds.

Example 1:

³

4

3

2

2.75

2.75 

Converting fractions to decimal values

Example 1:

1
2

(fraction  

´

  decimal)

´

0.5

 2 

Converting mixed fractions to improper fractions

Example 1:

3

5

3

2

1

3

5

3

2

1

´

 2 

 3 

 

 

D

You can use the display setup screen (Disp) to define the display
format when the result of a fraction calculation is greater than
one (1).

13

z

15.

2.1

2.75

2

z

3

z

4.

11

z

4.

1

z

2.

0.5

1

z

2.

1

z

2

z

3.

5

z

3.

1

z

2

z

3.

Summary of Contents for LCD-8510S

Page 1: ...SCIENTIFIC CALCULATOR LCD 8510S Gu USER S GUIDE Olympia Business Systems Vertriebs GmbH Zum Kraftwerk 1 45527 Hattingen ...

Page 2: ...actions 10 Converting fractions to decimal values 10 Converting mixed fractions to improper fractions 10 Percentage Calculation 11 Degrees Minutes Seconds Calculations 12 FIX SCI RND 12 Memory Calculations 13 Answer memory 13 Consecutive calculations 14 Independent memory 14 Variables 14 Calculations Using Scientific Functions 15 Trigonometric Inverse trigonometric functions 15 Hyperbolic Inverse ...

Page 3: ... mode 21 Linear regression 23 Logarithmic exponential power and inverse regression 24 Quadratic regression 25 Precautionary measures when entering data 25 Technical Information 26 Error messages 26 Order of priority of operations 27 Stacks 28 Input ranges 29 Replacing the battery 31 Auto power off 31 Cleaning and care 31 Guarantee 32 ...

Page 4: ...the calculator D Remove the batteries if the calculator will not be used for longer periods D Only use batteries specified in this guide for this calculator D Use batteries must not be disposed of in domestic waste Please dispose of them at collection points provided or a special refuse depot Disposal instructions In order to dispose of your device take it to a collection point provided by your lo...

Page 5: ...herefore this battery should be replaced after a shorter period than that stipulated for normal battery service life D Low battery voltage could cause the memory content to be corrupted or lost Therefore always make written copies of important data D Avoid exposing the calculator to extreme temperatures during operation and storage Low temperatures could cause the display to light up very slowly c...

Page 6: ...identification Basic arithmetic computation COMP Standard deviation SD Regression REG D Press the key more than once to display additional setup screens The setup screens are described in the sections of this guide in which they can actually be used in order to change the calculator settings D Throughout this guide the mode necessary to complete specific calculations appears in the title of each s...

Page 7: ...input D Use the and keys to move the cursor to the required position D Press the key to delete the character at the current cursor position D Press the following keys to activate the insert cursor Entries made are then inserted at that position when the insert cursor is in the display D Press the keys or the key to switch back from the insert cursor to the standard cursor Replay function D Each ti...

Page 8: ...up to 10 digits Larger values are automatically displayed using exponential notation In the case of decimal values it is possible to select between two formats which define at which point the exponential notation is used D In order to change the exponential display format press the key repeatedly until the exponential display format setup screen illustrated below appears Fix Sci Norm 1 2 3 D Press...

Page 9: ...t Decimal point comma as separator comma Decimal comma instead of point point as separator Initialising the calculator Press the following sequence of keys to initialise calculation mode and the setup and to clear the replay memory and variables All Basic Calculations Note Use the key to activate COMP mode in order to carry out basic calculations COMP Arithmetic calculations D Negative values in c...

Page 10: ...ecimal values to fractions D Use the following operation to convert calculation results from decimal values to fraction value D Please note that the conversion can take up to 2 seconds Example 1 4 3 2 2 75 2 75 Converting fractions to decimal values Example 1 1 2 fraction decimal 0 5 1 2 Converting mixed fractions to improper fractions Example 1 3 5 3 2 1 3 5 3 2 1 1 2 3 D You can use the display ...

Page 11: ... out calculation of percentages COMP Example 1 Calculate 12 of 1500 1500 12 Example 2 What percentage is 660 of 880 660 880 Example 3 Add 15 to 2500 2500 15 Example 4 Reduce 3500 by 25 3500 25 Example 5 A discount of 20 from the sum of 168 98 and 734 must be calculated 168 98 734 20 As shown here you must assign the value in the Answer Memory to a variable and then use the variable in the mark up ...

Page 12: ...al values Example 1 Convert the decimal value 2 258 to a sexagesimal value and back to a decimal value 2 258 Example 2 To perform the following calculation 12 34 56 x 3 45 12 34 56 3 45 FIX SCI RND To change the setup for the current number of decimal places the number of significant digits or the exponential display format press the key repeatedly until the setup screen illustrated below appears ...

Page 13: ... activate COMP mode to complete calculations using the memory COMP Answer memory D By pressing the key after entering a value or expression the result calculated is automatically stored in the answer memory so that its content is updated D In addition to using the key the content of the answer memory is also updated by pressing or followed by a letter A to F or M X or Y D You can call in the conte...

Page 14: ...ing type A function x2 x3 x 1 x DRG and with 5 xǠ x 1 and 2 Independent memory D The values can be entered directly in the memory or added to and subtracted from the memory The independent memory is particularly suited to calculating cumulative totals D The independent memory uses the same memory area as variable M D To delete the independent memory M press the keys Example 1 23 9 32 53 6 47 45x2 ...

Page 15: ...result appears in the display before starting the next calculation D 3 14159265359 Trigonometric Inverse trigonometric functions D In order to change the default angle unit degrees radians grads press the key repeatedly until the angle unit setup screen illustrated below appears Deg Rad Gra 1 2 3 D Press the digit key or which corresponds to the angle unit to be changed Example 1 sin 63 52 41 Deg ...

Page 16: ...tural logarithms antilogarithms Example 1 log 1 23 1 23 Example 2 ln 90 loge 90 90 Example 3 e10 10 Example 4 101 5 1 5 Example 5 2 3 2 3 Example 6 2 4 2 4 D Negative values in calculations must be enclosed in parentheses For details refer to Sequence of operations 0 785398163 0 25 36 53844577 18 28545536 4 094622224 0 089905111 4 49980967 22026 46579 31 6227766 0 125 16 ...

Page 17: ...le 5 123 12 Example 6 1 3 1 4 1 3 4 Example 7 8 8 Example 8 Generate a random number between 0 000 and 0 999 Results are always different Example 9 3 3 Example 10 Determine how many different four digit numbers can be generated with digits 1 to 7 The digits may not appear more than once in the four digit number 1234 is permitted but 1123 is not 7 4 5 287196909 1 290024053 1 988647795 1023 1728 12 ...

Page 18: ...ns to degrees Deg 4 25 R Coordinate conversion Pol x y Rec r D The results of the calculation are automatically assigned to variables E and F Example 1 Convert polar coordinates r 2 60 to rectangular coordinates x y Deg 2 60 D Pressing key sequence or displays the value for x or y respectively Example 2 Convert rectangular coordinates 1 Ǡ3 to polar coordinates r RAD mode 1 3 D Pressing key sequenc...

Page 19: ...vated the key operates as the key D Always begin entering data by pressing the key sequence Scl to clear the statistical memory D Enter data using the following key sequence x data D The data entered is used to calculate the values for i a b s n n 1 which can then be called in by pressing the following keys Recall the value Execute this key operation b a i s n o Example 1 Calculate o n s i a b for...

Page 20: ...ata and after completing data input you can press the and keys to scroll through the data entered If you have entered the same data several times using the keys to specify the data frequency number of data items as described above scrolling through the data produces separate displays for the data items and the data frequency Freq D You can edit the data displayed if necessary Enter the new value a...

Page 21: ...you will be unable to display or edit the data you have entered D To delete the data value just entered press the key D After you have entered statistical data in SD mode or REG mode you will be unable to display or edit the individual data items after carrying out one of the following operations D Switching to another mode D Changing the regression type Lin Log Exp Pwr Inv Quad Regression calcula...

Page 22: ...equence x data y data D The values produced from a regression calculation depend on the values entered and results can be called in using the key operations indicated in the table below Recall the value Execute this key operation b a i h g f s j k u l m Regression coefficient A Regression coefficient B other than quadratic regressions Correlation coefficient r p t ...

Page 23: ...ure Temperature Atmospheric pressure 10 C 1003 hPa 15 C 1005 hPa 20 C 1010 hPa 25 C 1011 hPa 30 C 1014 hPa In REG mode Lin SCI Stat clear 10 1003 Note Each time you press the key to register the data entered the number of data entries made up to that time appears in the display n value Execute linear regression in order to determine the terms and correlation coefficient of the regression equation ...

Page 24: ...mic exponential power and inverse regression D Use the same key operations as for linear regression in order to call in the results for these regression types D The regression equations for each regression type are listed below Logarithmic regression y A B ln x Exponential regression y A eBx ln y ln A Bx Power regression y A xB ln y ln A B lnx Inverse regression y A B 1 x 997 4 0 56 0 982607368 99...

Page 25: ...s applicable for editing for standard deviation also apply for regression calculations D Do not use variables A to F X or Y for saving data when you are performing statistical calculations These variables are used as temporary memory areas for statistical calculations so that data assigned to these variables can be replaced by other data during statistical calculations D By activating REG mode and...

Page 26: ... press the or key to display the calculation and correct the problem Refer to Error Locator for details Math ERROR Cause D The calculation result lies outside the permissible calculation range D An attempt was made to complete a calculation function using a value which is outside the permissible input range D An attempt is made to complete an illogical operation division by zero etc Action D Check...

Page 27: ...nction key is pressed x3 x2 x 1 x 9 p q r t Conversion of the angle unit DRG 3 Powers and roots 5 xǠ 4 0 5 Abbreviated multiplication format in front of e basis for natural logarithms memory name or variable name 2 3e 5A A etc 6 Type B functions In the case of these functions the function key is pressed first then the value is entered Ǡ 3Ǡ log ln O P sin cos tan sin 1 cos 1 tan 1 sinh cosh tanh si...

Page 28: ...ks in order to temporarily store values numeric stacks and commands command stacks according to their order of priority during calculation The numeric stack has 10 levels and the command stack has 24 levels A stack error stack ERROR occurs if you attempt to perform a calculation which is so complicated that the capacity of one of the stacks is exceeded D The calculations are performed in the seque...

Page 29: ...Gu 29 Input ranges Internal digits 12 Accuracy Normally there is an accuracy of 1 at the 10th digit Functions Input range Same as sinx except when Same as sinx except when Same as sinx except when ...

Page 30: ...onversion n is an integer n is an integer The total of digits for the integer numerator and denominator must not exceed 10 digits including division marks However However For a single calculation the calculation error is 1 at the 10th digit In the case of exponential displays the calculation error is 1 at the last ...

Page 31: ...e battery compartment cover and remove the cover 3 Remove the old battery 4 Wipe the sides of the new battery with a soft dry cloth Then insert the battery with the positive end at the top so that you can see it 5 Replace the battery compartment cover in position and secure it with the retaining screw 6 Press the key to switch on the power supply Auto power off The power supply of the calculator i...

Page 32: ...on if a problem occurs is to contact our hotline Hotline international 00800 100 22 100 service uk gsl servicenet de service cy gsl servicenet de If the fault can not be rectified via the phone we would ask you to send the appliance in its original packaging to the following address GSL mbH Am Weimarer Berg 6 99510 Apolda Germany We are sorry for any inconvenience IAN 92312 Yours faithfully Olympi...

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