User!Guide! - Optek Systems
Contents
1. y ax 2bcx c 1 Enter functions mode First use the f x key to enter functions mode 2 Enter the equation Push f x two more times to access the y soft key C and push it The bottom line of the display will now show y Now push f x again to get back to the variables list a b c x Enter the expression as follows using the soft keys A D note that D is x in this case as follows a X x k xb sg GC x xX cCc Once you press the key the equation will be displayed in the top line Of course if the equation contains a syntax error you will see an error message For now the middle line will remain blank 3 Entering values for the variables Push f x again so that the soft keys show a b etc Now let s enter specific values for a b c and x as follows a 3 Al b 2 vi c TAN 45 AU x 3 a Note from the above example that it s perfectly acceptable to enter a variable as an expression e g TAN 45 Provided the expression can be resolved it ll just enter the result as that variable You will notice that as these values are entered they appear in the middle results line Page 24 of 28 version 1 1 SciPlus 2300 Scientific Calculator User Manual At any time you can query a variable by simply selecting the ENTER key without a value or expression after the variable For example a will display 3 in the results line If you have not yet entered a value for a the2. enhancement om systems Statistical Operations The SciPlus 2300 performs statistical operations on a table of up to 99 entries Note that most statistical operations with the SciPlus 2300 use the soft keys A D KEY NAME DESCRIPTION Adds the current value into the statistics table If pressed at the end of an expression the expression is solved and the result added Note Aga Data Pointin that if a value already exists in the table it will be added a second time Stats Register e g 2 Xt 3 Lt 5 Yt 3 will create a table 2 3 5 3 This key causes the statistics soft keys to be displayed Note that there are two sets Pressing this 2 X a second time will bring up the second set of soft keys A third time will disable the soft keys Display Statistics Soft Keys Soft keys A D are used to perform various statistical operations Statistics soft keys are shown on the opposite page Note that u X x X x o oe and M canall be used in expressions Page 16 of 28 version 1 1 SciPlus 2300 Scientific Calculator User Manual Statistics Soft Keys indicates there are two entries in the statistics table D SCI 2 2 2 m 1 36E 02 es Ei 1 set of operators delete 15 from table if ee ae t sum of entries clear table mean average of entries standard deviation variance sum of deea em median middle entry ZGA o 0 M je set oF peat CLC EE 2014 Sight Enhancement Systems Page 17 of 2
3. either fractions or integer numbers e g 2 X 2 4 3 6 followed by AH yields 6 1 2 2 0 XY 4 3 6 followed by Al yields 6 5 Note that the fraction command always requires the following syntax an integer number followed by a comma then another number followed by the operator and finally a third integer number Simply press this key followed by A without any arguments and the result shown in the line above will be converted from fraction to decimal or vice versa 2014 Sight Enhancement Systems Page 21 of 28 sight 7 d enhancement systems Using the SciPlus 2300 to Evaluate Mathematical Functions When you select the f x key the display will look like the picture on the opposite page Note that while in functions mode the following features of the SciPlus 2300 are not accessible e Fraction calculations e x y lt gt 1 8 conversions e DMS lt gt DD conversions e Memory operations the value stored in memory is maintained e Statistical operations the statistics table is maintained When in f x mode the three lines displayed each have unique meaning Equation Line The top line shows the equation that is being evaluated Note that equations are in the form y f a b c x and can have up to four variables a b c and x Of course convention normally considers a b and c to be constants x the independent variable and y the dependent variable Results Line The middle line
4. om systems Exiting functions mode You can exit function mode by simply pressing the 2 key followed by f x Some guidelines while in functions mode e Note that you don t need to enter the equation first and the variables second You can start by entering variables If you enter variables that are not in the equation they will be ignored If you don t enter all the variables required by the equation you will see y when you enter y 4 e You can also change the equation and keep the same variables Page 26 of 28 version 1 1 SciPlus 2300 Scientific Calculator User Manual Speech Output Your SciPlus 2300 will automatically read the results of expressions when they are evaluated You will also notice that the speech output describes settings screens etc when they appear At any time pressing a button to continue operations will halt the speech output Turn speech output on off and mkd HINT Always ensure that the volume control on your earbuds is turned up Read status line Errors Sometimes you ll enter things incorrectly such as not closing a bracket or dividing by zero In this case you ll get a SYNTAX ERROR l e ERROR message like the image at left SYNTAX You might see other types of error messages such as INVALID ERROR ARGUMENT or INFINITE RESULT To correct the error simply press A which will return you to the entry line Use the gt BKSP keys to correct the e
5. to Decimal g DD 45 30 0 followed by yields 45 5 Degrees Note that if the second line is in DMS format entering DD followed by converts that value into DD format 2014 Sight Enhancement Systems Page 19 of 28 gN sight enhancement oa systems Converting Coordinates between Polar and Rectangular KEY NAME DESCRIPTION Page 20 of 28 Rectangular to Polar Polar to Rectangular Converts rectangular x y coordinates into polar r 6 Note that angles are expressed in degrees radians or gradians as indicated on the status line e g R P 1 1 followedby cl yields 1 41 45 00 Note that if the result line is in rectangular x y format entering P R followed by AH converts that value into polar r 8 format Converts polar r 9 coordinates into rectagualar x y Note that angles are entered as degrees radians or gradians as indicated on the Status line eg PSR 1 41 45 followed by cl yields 1 00 1 00 Note that if the second line is in polar r 8 format entering R3 P followed by H converts that value into rectangular x y format version 1 1 Working With Fractions SciPlus 2300 Scientific Calculator User Manual KEY NAME DESCRIPTION Enter a Fraction Convert Between Fraction and Decimal Use this key to enter a fractional amount into an expression The result is displayed as a fractional amount ONLY if all the operands in the expression are entered as
6. 0 followed by 4 yields a result of 4 5 If the operator is followed by another operator a Syntax Error results gt Squares the value to the left Enter x first x2 X e g 10 2 followed by yields a result of 10 or 100 Page 12 of 28 version 1 1 SciPlus 2300 Scientific Calculator User Manual vw NAME SCRIPTION x Raises the value to the left to an exponent Enter y first Shown as e g 2 3 followed by Al yields a result of 27 or 8 Calculates the reciprocal of an expression Calculates the square root of a value Calculates the n root of a value e g 3 ny 8 followed by Al yields the v8 or 2 Calculates the base10 logarithm of an expression e g LOG 25 x 4 followedby AH yields l08 100 or 2 Calculates the natural logarithm of an expression nN ei eg LN 25 x 4 followed by Al yields In 100 or 4 605170186 A Root Calculates the value of e 2 2 718282 raised to an expression LN eg EXP 2 3 follovved by A yields ei or 148 4131591 x Calculates the value of 10 raised to a value 10 e g 10 5 followedby A yields 107 or 100000 2014 Sight Enhancement Systems Page 13 of 28 gN sight enhancement om systems Memory Operations Note that memory operations with the SciPlus 2300 use the soft keys A D KEY NAME DESCRIPTION l This key causes the memory soft keys to be displayed Note that there Display Memory Soft Keys are two sets Press
7. 2300 Display The SciPlus 2300 screen is shown at right Note that there are four lines The bottom line is the one in which you enter expressions The other three lines show the results of previous operations Once you hit the ENTER key an expression is evaluated and it s result is moved up a line leaving the bottom line empty to enter another expression The characters above the horizontal line at the top of the screen show the status line of the calculator If the battery symbol is animated this indicates that the battery is being charged Some of the characters in the status line may not appear at all times For example if there is no entry in memory or if the statistics register is currently empty these items will not appear in the status line 2014 Sight Enhancement Systems SciPlus 2300 Scientific Calculator User Manual 2 function yellow keys angle notation Degrees Radians Gradians display notation Standard Fixed Engineering Scientific value saved in memory Statistics array 2 entries plugged in level AD SID M 2 2 un 1 36 T 1 0011002 reiosresus 17 SIN 45 errer expresion t cursor flashing Page 3 of 28 gN sight enhancement J om systems SciPlus 2300 Operations The SciPlus 2300 follows the BEDMAS rule for order of operations Brackets Exponents gt Divide gt Multiply gt Addition gt Subtraction Most of the SciPlus 2300 k
8. 8 gN sight enhancement om systems Trigonometry Trigonometry functions are very straightforward with the SciPlus 2300 Note that the values used in trigonometry functions and the result are expressed in Degrees Radians or Gradians as indicated by D R or G in the status line vu NAME DESCRIPTION Calculates the sine of an expression e g assume degrees SIN 30 followed by cl yields 0 5 Sine Calculates the inverse sine arcsine of an expression Arcsine e g assume degrees ASIN 0 5 followed by A yields 30 This simply toggles through Degrees Radians Gradians The current setting is indicated in the status line After setting this parameter Set Angle Mode 5 5 P subsequent input values and the results of expressions are expressed accordingly Converts the current value displayed in the second line and changes Convert Angle DRG the status line parameter The Cosine and Tangent functions and their inversions work the same way Page 18 of 28 version 1 1 SciPlus 2300 Scientific Calculator User Manual Converting Angles KEY NAME DESCRIPTION Converts decimal degrees into degrees minutes seconds Decimal Degrees 8 DMS 45 5 followedby A yields 45 30 0 00 ONS Note that if the second line is in DD format entering DMS followed by converts that value into DMS format Converts degrees minutes seconds into decimal degrees DMS
9. B soft keys to turn the backlight on off The C D keys adjust the brightness Note that the backlight will significantly shorten the duration of a battery charge from weeks to hours For this reason the SciPlus 200 always powers on with the backlight turned off Screen Inversion Often people with low vision are able to benefit from an inverted screen The A B keys simply invert the display between black white and white black version 1 1 SciPlus 2300 Scientific Calculator User Manual Speech Output Use the A B softkeys to select the language Normally your SciPlus 2300 will speak in English EN and one additional language as ordered from the factory German in this example The C D softkeys will adjust the output volume 2014 Sight Enhancement Systems Page 9 of 28 gN sight enhancement am systems Basic Functions DESCRIPTION snd Press this key before any dual function key to access the upper yellow Function function You will notice the amp symbol appear in the status line Turn calculator ON The cursor will appear on the bottom line Most of the settings from the previous session will remain as they were ON Clear Save settings memory and statistics data and turn calculator OFF E Backspace Delete last entry or function Do Enter Resolves the current expression displaying the result in the second line If the expression contains errors an error message will appe
10. SciPlus 2300 Scientific Calculator gN sight enhancement J systems Table of Contents Germe Sr ME 1 EERSTEN 2 ah E ENING EC DISDIAY COM AGE E 2 SOL Ee 2 IE SOUP UNS 2300 DIS E 3 EEGEN 4 Working With Previous RESCUES sscan EEEE ENAA EEE EEEa AENEAS iE 5 Anto SHOTO E 5 SCUDI S ea trenta EEEE E EEEE E E nt 6 Basic We lr un EE 10 IVT DUR AUC AU PUN ONS meitats nse s cece cease sento e E emissions mnmbb brags it temsatetm ei ee im Mescetatsci em 12 IVR TION yO DE IOS irn EE EE titelles 14 SES EE 16 Kern ME Y e E E suiequansnssiaissdsesuudinsusseabenaassmuatiss 18 Ra lr 19 Converting Coordinates between Polar and Rectangular aeerameramerammaamanaaranrararannanntaranmenrnmrnrsararnarannrtranannmenramrsennnn 20 Work WUN Te UN E 21 Using the SciPlus 2300 to Evaluate Mathematical FUnCtiOnS 22222222222a22raaararanarananamanamenranmanmraamrnaranmanrananaranertarennenramenenaeraenannnn 22 SDECCI ON UD ees 27 2014 Sight Enhancement Systems version 1 1 KEE ee SELVIC T TE E E PER EE E A AA E E AT EEEE E AS L E A AAA EAA N O EAA EAA AA A AA AE IAEN A EERE EAE E TA AEA A A E A WOT E SciPlus 2300 Scientific Calculator User Manual Getting Started The SciPlus calculator performs a wide variety of mathematical statistical and trigonometric calculations This User Guide will explain how to get the best from your calculator Let s first get familiar with the SciPlus controls soft keys setti
11. ar 3 Enter Pressing the 2 key followed by clears the current expression and all previous results Open parentheses Note that some expressions will automatically Open Parentheses P include the opening parentheses Page 10 of 28 version 1 1 SciPlus 2300 Scientific Calculator User Manual KEY NAME DESCRIPTION H Close Parentheses Close parentheses Ebene Sie Change the sign of the operand After some operands e g x this operation will insert a negative sign into the expression EE Scientific Notation This is equivalent to x10 raised to the power El Settings Manage settings see section on Settings Toggles on off 2014 Sight Enhancement Systems Page 11 of 28 gN sight enhancement om systems Mathematical Functions O KEY NAME DESCRIPTION Enters the symbol r into an expression If you simply enter 7 cl the result 3 141592654 will be displayed Calculates the factorial of the value to the left Enter this after you enter Factorial I 1 X the value of x The behavior of the function depends upon context If the expression is simply a number with the operator the result of the expression is the number divided by 100 If the operator is appended to a number which is itself to the right of Percentage 8 the x or operator the percentage is added to subtracted from multiplied by or divided by the number to the left of the operator e g 3 5
12. eys have two functions The lower function appears in a white font The alternate or 2 function when present appears in a yellow font To access this function the Zn key must first be pressed Throughout the key descriptions below if a key symbol appears in a yellow background this indicates that the 277 key must be pressed before this key is pressed Notes regarding nomenclature 1 Throughout this manual a key press is indicated in blue For example Al indicates the red ENTER key on the keyboard 2 In the examples below the key press in blue is shown the way it appears in the display which is not necessarily the way it appears on the Key Page 4 of 28 version 1 1 SciPlus 2300 Scientific Calculator User Manual Working with Previous Results When entering expressions in the bottom line it s very easy to use the results of previous calculations displayed in the lines above it Using the and arrows position the cursor at the location in the expression where you wish to insert a previous result Now using the AN and de arrows select the previous result that you wish to insert into the current expression and press GJ Auto Shutoff Your SciPlus 2300 calculator will automatically shut off after five minutes of inactivity Many of the calculator s current settings such as the angle mode number format etc will be saved so that it will turn on again in the same state Values stored in memory and the statistics
13. ing this 2 MEM a second time will bring up the second set of memory soft keys A third time will disable the soft keys Soft keys A D are used to clear the memory swap the value in memory with the current line and perform simple arithmetic operations x on the value stored in memory using the current line Memory soft keys are shown on the opposite page In this example the value 15 resides in the current line Note that storing a value of o clears the memory Note that the STO softkey A if pressed at the end of an expression will solve the expression and store the result The EXC M M Mx and M all work in the same manner Pressing the RCL softkey B will add RCL to the current expression When the expression is evaluated the value currently stored in memory is used To display the value currently in memory simply enter RCL by itself followed by J Page 14 of 28 version 1 1 SciPlus 2300 Scientific Calculator User Manual Memory Soft Keys M indicates there is a value in memory D SCI 2 M 1 36E 02 STOIRCLIEXC de set of operators clear and store 2 t exchange 15 with memory value Places memory contents into the current expression subtract 15 from memory mulitply memory by 15 add 15 to memory q en memory by 15 ME M Max Max Ka M ke 24 set of operators B a 4 A D soft keys 2014 Sight Enhancement Systems Page 15 of 28 gN sight
14. n a undefined will be displayed in the results line You can clear any variable using the garbage can E g a U 4 What s the answer Once all four variables have been entered you can select y J to display the result of y 3x 2 TAN 45 x TAN 45 in the middle line 62 in this example as shown If the equation contains a divide by zero condition the result Y DIVo will be displayed 29 If you see y in the middle line it means that not all of the necessary variables have been entered yet Zero values must be entered as such 5 Changing variables At any point you can change one of the values of a b c x by repeating step 3 above Anew value of y will be calculated each time a variable is entered For example to find the value of y ax 2bcx c for a new value of x 4 simply enter x 4 lt I 6 Editing the equation To edit the equation use the enter y to put the equation into the input line Move the cursor to the location you wish to edit Remember BKSP removes operators from the equation Use the y gt Uto clear the equation 7 Entering a new equation You can easily enter a new equation by repeating step 2 above The values for a b c x will remain unchanged until you change them as explained in step 3 8 Clearing everything You can use CLR to clear all the constants as well as the equation and start fresh 2014 Sight Enhancement Systems Page 25 of 28 gN sight enhancement
15. ngs USB contrast dial speech earbud jack ENTER 2014 Sight Enhancement Systems Page 1 of 28 gN sight enhancement om systems Charging your SciPlus 2300 Charging the calculator is easy Simply plug the USB wall charger into a regular outlet and plug the USB cable to the SciPlus 2300 The calculator will receive a good charge overnight The SciPlus 2300 will operate for many weeks between charges Note that if you regularly use the backlight the battery will deplete much more quickly This is not a problem just charge it up and you re good to go Your SciPlus 2300 calculator includes a USB Wall Charger and cord Please ensure that these items are in the box Adjusting the Display Contrast There is a dial on the right hand side of the SciPlus 2300 that you can use to adjust the contrast of the display Note that this does NOT adjust the brightness of the backlight that is done through the settings menu You may find that adjusting the contrast will help maintain optimal visibility of the display as the battery depletes Soft Keys The keys labeled A B C and D do not have a specific function Instead labels at the bottom of the display define the function of these keys If there are no labels these keys will not do anything You will use these keys when adjusting the SciPlus 2300 s settings and for memory and statistics operations Page 2 of 28 version 1 1 The SciPlus
16. rror 2014 Sight Enhancement Systems Page 27 of 28 gN sight enhancement J om systems Service If for any reason you require service or support for your SciPlus 2300 please contact the authorized dealer from whom it was purchased You may also contact Sight Enhancement Systems directly 1 613 421 8953 or service sightenhancement com Please have the following information available e The serial number of the SciPlus 2300 see the label on the underside of the calculator e The authorized manufacturer s representative from whom the SciPlus 2300 was purchased e A description of the problem The robustness of Sight Enhancement Systems SciPlus calculator is legendary and you should enjoy years of reliable operation Warranty The SciPlus 2300 is covered by a one year limited warranty from the date of purchase Warranty includes parts labour and shipping costs Goods may be returned only upon authorization by SES Warranty covers normal wear and tear and does not cover damage resulting from obvious misuse of the product Examples of misuse include but are not limited to damage due to exposure to moisture or extreme heat damage due to dropping the device and physical damage to connectors and plugs Page 28 of 28 version 1 1 A sight 364 Huron Avenue South enhancement Ottawa Ontario K1Y oW7 systems CANADA www sightenhancement com
17. shows the result of the most recent calculation This may be the entry or query of one of the of the variables a b c x or the resulting value of the equation for a given set of variables Input Line This is the line in which you enter the equation using the various mathematical functions of the SciPlus 2300 You also enter values a b c and x Later we will talk about how to determine one of these values if y is known Page 22 of 28 version 1 1 SciPlus 2300 Scientific Calculator User Manual The soft keys of the SciPlus 2300 have the following meaning while in functions mode indicates the SciPlus 2300 is in f x mode y ax2 2bx y 02 C L R ben 3 set of operators S D none f x lt equation previous result 2014 Sight Enhancement Systems First set of operators Push f x once The four soft keys allow you to use the variables a c C x to define a function in the form y f a b c x Second set of operators Push f x again This second set of soft keys allows you to define values for the variables a b c x Third set of operators Push f x a third time This third set of soft keys allows you to enter edit and clear the equation find y and CLR all the stored information related to f x mode Page 23 of 28 gN sight enhancement J systems Calculating values of f x Let s investigate how to use the SciPlus 2300 in functions mode by evaluating the expression
18. table are also saved Note that if the backlight is on when the calculator is turned off it will be off when the calculator is again turned on If the calculator is left off for an extended period typically many weeks these settings will be lost 2014 Sight Enhancement Systems Page 5 of 28 gN sight enhancement f Qu systems Settings There are four settings screens in the SciPlus 2300 accessed by the Esd key Cycle through the four settings screens using the and de arrows or by entering 1 through 4 Change settings in any of the three screens using the A D soft keys Page 6 of 28 version 1 1 SciPlus 2300 Scientific Calculator User Manual SciPlus 2300 Standard Fixed Notation Scientific Notation Engineering Notation 2014 Sight Enhancement Systems Number Format There are four number formats supported by the Numbers show up to ten digit precision Examples 101 41250 5 0 33333333 Number of decimals is fixed Examples 101 00 41250 50 0 33 Numbers are displayed in powers of ten with a fixed number of decimals Examples 1 01E 02 4 13E 04 3 30E 01 Numbers displayed in powers of 10 10 10 103 10 with fixed decimal precision These steps express values corresponding with micro milli kilo mega etc Examples 101 41 25E 03 333E 03 Page 7 of 28 gN sight enhancement 4 om systems H BACKLIGHT Page 8 of 28 Backlight Use the A
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