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Related Manuals for Sight Enhancement Systems SciPlus-2500
Summary of Contents for Sight Enhancement Systems SciPlus-2500
- Page 1 User!Guide!
- Page 3 Table&of&Contents& Getting&Started& ....................................& 1 Charging&your&SciPlus:2500&...............................&2 The&SciPlus:2500&Display& ................................&3 SciPlus:2500&Operations&................................&4 Adjusting&the&Display&Contrast& ..............................&5 Soft&Keys&.....................................&5 Working&with&Previous&Results&..............................&5 Auto&Shutoff&....................................&6 Settings&.......................................&7 Basic&Functions&..................................& 1 0 Mathematical&Functions&................................&12 Memory&Operations& ..................................& 1 4 Statistical&Operations&................................& 1 6 ©!2014,!Sight!Enhancement!Systems! version!1.2!
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Page 4: Table Of Contents
Trigonometry&....................................& 1 8 Converting&Angles& ..................................& 1 9 Working&With&Fractions& ................................&20 Converting&Coordinates&between&Polar&and&Rectangular&.....................&21 Using&the&SciPlus:2500&to&Evaluate&Mathematical&Functions&....................&22 Calculating*values*of*f(x)*..........................*24 Exiting*functions*mode*..........................*26 Some*guidelines*while*in*functions*mode*....................*26 Graphing&with&Your&SciPlus:2500&............................&27 Viewing*the*Graph* ............................*27 Using*the*Cursor*............................*28 Adjusting*the*Axes* ............................*30 Solving*for*Zeros*(Poles)*..........................*32 A*Graphing*Example* .............................*33 Speech&Output& ..................................&34 Errors&......................................&34 Service& .......................................&35 Warranty& ....................................&35... - Page 5 & & ©!2014,!Sight!Enhancement!Systems! version!1.2!
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Page 7: Getting&Started
SciPlusB2500!Scientific!Calculator!–!User!Manual Getting&Started& The! SciPlusB2500! 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! “soft”)keys) familiar!with!the!SciPlus!controls.! “settings”) USB) contrast)dial) “speech”) earbud)jack) “ENTER”) ©!2015,!Sight!Enhancement!Systems! Page!1!of!35! -
Page 8: Charging&Your&Sciplus:2500
Charging&your&SciPlus:2500& Charging!the!calculator!is!easy.!!Simply!plug!the!USB!wall!charger!into!a!regular!outlet,!and!plug!the!USB! cable!to!the!SciPlusB2500.!!The!calculator!will!receive!a!good!charge!overnight,!although!to!completely! charge!the!battery!may!take!a!couple!of!days.!!The!SciPlusB2500!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!SciPlusB2500!calculator!includes!a!USB!wall! charger,!USB!cable,!and!earbuds.!!Please!ensure!that!these!items!are!in!the!box.! When!the!SciPlusB2500!is!charging,!you!will!notice!the!battery!symbol!is!animated.!!The!battery!is! completely!charged!if,!with!the!charger!still!plugged!in,!you!turn!on!the!battery!and!the!animation!shows! three!bars.! Note:!!If!your!SciPlus!has!been!unused!for!a!long!time,!you!may!need!to!charge!it!for!a!while!before!it!will! even!turn!on.!!When!this!happens,!make!sure!you!“RESET”!the!SciPlus!by!carefully!inserting!a!paperclip! into!the!hole!on!the!back!of!the!calculator.!!This!restores!factory!settings!to!ensure!proper!operation.! Page!2!of!35! version!1.2! -
Page 9: The&Sciplus:2500&Display
SciPlusB2500!Scientific!Calculator!–!User!Manual 'function'(yellow'keys)' The&SciPlus:2500&Display& angle'notation:'Degrees,'Radians,'Gradians' The!SciPlusB2500!screen!has!four!lines.!!The!bottom! display'notation:''' ;'Standard,'Fixed,'Engineering,'Scientific' line!is!where!you!enter!expressions.!!The!other!three! value'saved'in'memory' lines!show!the!results!of!previous!operations.!!Once! statistics'array'(2'entries)' you! press! ,! an! expression! is! evaluated! and! its! ↵ plugged'in' result! is! moved! up! a! line,! leaving! the! bottom! line! battery'level' empty!to!enter!another!expression.!! STD M Σ:2 Note:! As! shown! by! the! red! circle,! a! right! arrow! 1.367 symbol! indicates! that! a! number! that! is! wider! than! the!screen.!!BE!CAREFUL:!!This!number!may!have!a! -
Page 10: Sciplus:2500&Operations
SciPlus:2500&Operations& The!SciPlusB2500!follows!the!“BEDMAS”!rule!for!order!of!operations:! Brackets!$!Exponents!$!Divide!$!Multiply!$!Addition!$!Subtraction! Most! of! the! SciPlusB2500! keys! 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!2 !key! must! first! be! pressed.! ! Throughout! the! key! descriptions! below,! if! a! key! symbol! appears! in! a! yellow! background,!this!indicates!that!the!!2 !key!must!be!pressed!before!this!key!is!pressed.! Notes!regarding!nomenclature:! -
Page 11: Adjusting&The&Display&Contrast
SciPlusB2500!Scientific!Calculator!–!User!Manual Adjusting&the&Display&Contrast& There!is!a!dial!on!the!right!hand!side!of!the!SciPlusB2500!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.! Soft&Keys& The!keys!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!SciPlusB2500’s!settings,!for!memory!and!statistics!operations,!and!when! using!the!f(x)!and!!!!!!!!!!!!!(graphing)!features.! 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! !! and! "! arrows,! select! the! previous!result!that!you!wish!to!insert!into!the!current!expression,!and!press! ↵... -
Page 12: Auto&Shutoff
Auto&Shutoff& Your! SciPlusB2500! 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!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.! Page!6!of!35! version!1.2! -
Page 13: Settings
SciPlusB2500!Scientific!Calculator!–!User!Manual Settings& There! are! five! settings! screens! in! the! SciPlusB2500,! accessed! by! the! ! ! ! ! ! ! key.! ! Cycle! through! the! five! screens!using!the!!!and!"!arrows,!or!by!entering!1!through!5.!!Change!settings!in!any!of!the!screens! using!the!A!B!D!soft!keys.! Number*Format:* NUM FORMAT There!are!four!number!formats!supported!by!the!SciPlusB2500:! Standard:& Numbers!show!up!to!tenBdigit!precision.&&& 4 5 6 7 Examples:**101,*41250.5,*0.33333333* Fixed&Notation:& Number!of!decimals!is!fixed.!!! Examples:**101.00,*41250.50,*0.33* Scientific&Notation:&&&... - Page 14 BACKLIGHT Backlight:* Use!the!A!and!B!soft!keys!to!turn!the!backlight!on/off.! The!C!and!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!SciPlusB200! always!powers!on!with!the!backlight!turned!off.! INVERT Screen*Inversion:* Often,! people! with! low! vision! are! able! to! benefit! from! an! inverted! screen.! ! The! A! and! B! keys! simply! invert! the! display! between! black/white!and!white/black.! Page!8!of!35! version!1.2!
- Page 15 SciPlusB2500!Scientific!Calculator!–!User!Manual AUDIO Speech*Output:* Use! the! A! and! B! softkeys! to! select! the! language.! ! Normally,! your! SciPlusB2500! will! speak! in! English! (EN)! and! one! additional! language! as!ordered!from!the!factory!(German!in!this!example).! The!C!and!D!softkeys!will!!l!adjust!the!output!volume.! ANGLE Angle:* Use! the! A! and! B! softkeys! to! select! the! angle! mode.! ! Trigonometry! functions! and! graphing! will! use! degrees,! radians,! or! gradians! based! on!this!setting.! You!will!see!“D”,!“R”,!or!“G”!in!the!status!line.!
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Page 16: Basic&Functions& 1
Basic&Functions& KEY& NAME& DESCRIPTION& Press!this!key!before!any!dualBfunction!key!to!access!the!upper!(yellow)! !Function! function.!!You!will!notice!the!!!!!!!symbol!appear!in!the!status!line.!! Turn!calculator!ON.!!The!cursor!will!appear!on!the!bottom!line.!!Most!of! ON/Clear! the!settings!from!the!previous!session!will!remain!as!they!were.! OFF! Save!settings,!memory!and!statistics!data,!and!turn!calculator!OFF.! Backspace! Delete!last!entry!or!function.! BKSP Resolves! the! current! expression,! displaying! the! result! in! the! second! Enter! line.!!If!the!expression!contains!errors,!an!error!message!will!appear.! Pressing!the!2 !key!followed!by! clears!the!current!expression!and! ↵ !Enter! all!previous!results.! Open! parentheses.! ! Note! that! some! expressions! will! automatically! Open!Parentheses! include!the!opening!parentheses.! Page!10!of!35! - Page 17 SciPlusB2500!Scientific!Calculator!–!User!Manual KEY& NAME& DESCRIPTION& Close!Parentheses! Close!parentheses.! Change! the! sign! of! the! operand.! ! After! some! operands! (e.g.! ×! ÷),! this! Change!Sign! / − operation!will!insert!a!negative!sign!into!the!expression.! Scientific!Notation! This!is!equivalent!to!“×10!raised!to!the!power…”! Settings! Manage!settings!(see!section!on!Settings).!!Toggles!on/off.! ©!2015,!Sight!Enhancement!Systems! Page!11!of!35!
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Page 18: Mathematical&Functions
Mathematical&Functions& KEY& NAME& DESCRIPTION& π π ↵ Enters!the!symbol!π!into!an!expression.!!If!you!simply!enter!!! ,!the! result!3.141592654!will!be!displayed.! Calculates!the!factorial!of!the!value!to!the!left.!!Enter!this!after!you!enter! Factorial! the!value!of!‘x’.! Squares!the!value!to!the!left.!!Enter!‘x’!first.! e.g.:!!10 ^2 followed!by! yields!a!result!of!10 ,!or!100. ↵ Raises!the!value!to!the!left,!to!an!exponent.!!Enter!‘y’!first.!!Shown!as!‘^’.! e.g.:!!2 ^ 3 followed!by yields!a!result!of!2 !or!8.! ↵ Calculates!the!reciprocal!of!an!expression.! Reciprocal! /( 25 × 4 ) e.g.:!! followed!by! !!yields!1/100,!or!0.01.! ↵ Calculates!the!square!root!of!a!value.! Square!Root! √... - Page 19 SciPlusB2500!Scientific!Calculator!–!User!Manual KEY& NAME& DESCRIPTION& Calculates!the!base10!logarithm!of!an!expression.! LOG! e.g.:!!LOG( 25 × 4 )!!followed!by!! yields!log (100),!or!2.! ↵ Calculates!the!natural!logarithm!of!an!expression.! e.g.:!!LN( 25 × 4 )!!followed!by!! yields!ln(100),!or!4.605170186.! ↵ Calculates!the!value!of!e!(2.2.718282)!raised!to!an!expression.! e.g.:!!EXP( 2+3 )!!followed!by!! yields!e ,!or!148.4131591.! ↵ Calculates!the!value!of!10!raised!to!a!value.! 5!!!followed!by!! e.g.:!!10^ yields!10 ,!or!100000.! ↵ 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.! π...
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Page 20: Memory&Operations& 1
Memory&Operations& Note!that!memory!operations!with!the!SciPlusB2500!use!the!soft!keys!A!–!D!.!! KEY& NAME& DESCRIPTION& This!key!causes!the!memory!soft!keys!to!be!displayed.!!Note!that!there! Display!Memory! MEM!a!second!time!will!bring!up!the! are!two!sets.!!Pressing!this!2 Soft!Keys! BKSP second!set!of!memory!soft!keys.!!A!third!time!will!disable!the!soft!keys.! Soft! keys! A! B! D! are! used! to! clear! the! memory,! swap! the! value! in! memory! with! the! current! line,! and! perform! simple! arithmetic! operations! (! +! B! ×! ÷! )! 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!‘0’!clears!the!memory.! Note!that!if!STO!(softkey!A),!if!pressed!at!the!end!of!an!expression,!will!solve!the!expression!and!store! - Page 21 SciPlusB2500!Scientific!Calculator!–!User!Manual “M”$indicates$there$is$a$value$in$memory$ SCI:2 M 1.36E+02 2.70E+00 RCL EXC $set$of$operators$ clear$and$store$‘15’$ exchange$‘15’$with$memory$value$ Places$memory$contents$ into$the$current$expression$ mulitply$memory$by$‘15’$ subtract$‘15’$from$memory$ add$‘15’$to$memory$ divide$memory$by$‘15’$ M+ M- M× M÷ $set$of$operators$ ABD$“soft$keys”$ ©!2015,!Sight!Enhancement!Systems! Page!15!of!35!
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Page 22: Statistical&Operations& 1
Statistical&Operations& The!SciPlusB2500!performs!statistical!operations!on!a!table!of!up!to!99!entries.!!Note!that!most!statistical! operations!with!the!SciPlusB2500!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! Add!Data!Point!in! that!if!a!value!already!exists!in!the!table,!it!will!be!added!a!second!time.! Stats!Register! e.g.:!!2 Σ+ 3 Σ+ 5 Σ+ 3 Σ+!!will!create!a!table!(2,!3,!5,!3)! This!key!causes!the!statistics!soft!keys!to!be!displayed.!!Note!that!there! Display!Statistics! are! two! sets.! ! Pressing! this! Σ! ! a! second! time! will! bring! up! the! Soft!Keys! second!set!of!soft!keys.!!A!third!time!will!disable!the!soft!keys.!! Soft!keys!A!B!D!are!used!to!perform!various!statistical!operations.!!Statistics!soft!keys!are!shown!on!the! opposite!page.!!Note!that!!μ!!Σ(x)!!!Σ(x )!!!σ!!!σ... - Page 23 SciPlusB2500!Scientific!Calculator!–!User!Manual indicates$there$are$two$entries$in$the$statistics$table$ SCI:2 Σ:2 1.36E+02 2.70E+00 µ Σ− Σ(x) $set$of$operators$ delete$15$from$table$(if$present)$ sum$of$entries$ clear$table$ mean$(average)$of$entries$ standard$deviation$ variance$ sum$of$squares$ median$(middle$entry)$ Σ(x σ σ $set$of$operators$ A>D$“soft$keys”$ ©!2015,!Sight!Enhancement!Systems! Page!17!of!35!
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Page 24: Trigonometry
Trigonometry& Trigonometry! functions! are! very! straightforward! with! the! SciPlusB2500.! ! 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.!!Remember,!use!the!!!!!!!!!!key,!menu!#5!to!change!the!DRG!setting.!!DRG!is! also!changed!when!converting!angles,!is!described!in!the!table!below.! KEY& NAME& DESCRIPTION& Calculates!the!sine!of!an!expression.!! Sine! e.g.!(assume!degrees):!!!SIN( 30 ) followed!by! yields!0.5.! ↵ !Calculates!the!inverse!sine!(arcsine)!of!an!expression.!! Arcsine! e.g.!(assume!degrees):!!!ASIN( 0.5 ) followed!by! yields!30.! ↵ Converts! the! current! value! displayed! in! the! second& line,! and! changes! Convert!Angle! / −... -
Page 25: Converting&Angles
SciPlusB2500!Scientific!Calculator!–!User!Manual Converting&Angles& KEY& NAME& DESCRIPTION& Converts!decimal!degrees!into!degrees,!minutes,!seconds.!! e.g.:!!!DMS( 45.5 )!followed!by! yields!(45,30,0.00).! ↵ Decimal!Degrees! to!DMS! Note!that!if!the!second!line!is!in!DD!format,!entering!!DMS( followed! converts!that!value!into!DMS!format.! ↵ Converts!degrees,!minutes,!seconds!into!decimal!degrees.! e.g.:!!!DD( 45,30,0 )!followed!by! yields!(45.5)! ↵ DMS!to!Decimal! Degrees! Note!that!if!the!second!line!is!in!DMS!format,!entering!!DD( followed! converts!that!value!into!DD!format.! ↵ ©!2015,!Sight!Enhancement!Systems! Page!19!of!35! -
Page 26: Working&With&Fractions
Working&With&Fractions& KEY& NAME& DESCRIPTION& 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!either!fractions!or!integer!numbers.! 2 + X 4,3/6)!followed!by! e.g.:! yields!6!1/2! ↵ Enter!a!Fraction! 2.0 + X 4,3/6)!followed!by! ! 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.!!If!the! fraction!has!no!integer!portion,!you!must!enter!0.! Convert!Between! -
Page 27: Converting&Coordinates&Between&Polar&And&Rectangular
SciPlusB2500!Scientific!Calculator!–!User!Manual Converting&Coordinates&between&Polar&and&Rectangular& KEY& NAME& DESCRIPTION& Converts! rectangular! (x,y)! coordinates! into! polar! (r,θ).! ! Note! that! angles! are! expressed! in! degrees,! radians! or! gradians! as! indicated! on! the!status!line.! Rectangular!to! e.g.:!!!R$P( 1 , 1 )!followed!by! yields!(1.41,45.00)! ↵ Polar! Note! that! if! the! result! line! is! in! rectangular! (x,y)! format,! entering!! P$R( followed!by! converts!that!value!into!polar!(r,θ)!format.! -
Page 28: Using&The&Sciplus:2500&To&Evaluate&Mathematical&Functions
Using&the&SciPlus:2500&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!SciPlusB2500!are!not!accessible:! • Fraction!calculations! • (x,y)! !(r,θ)!conversions! • DMS! !DD!conversions! • Memory!operations!!(the!value!stored!in!memory!is!maintained)! • 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!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!result!of!the!equation!for!a!given!set!of!variables.! - Page 29 SciPlusB2500!Scientific!Calculator!–!User!Manual The!“soft!keys”!of!the!SciPlusB2500!have!the!following!meaning!while!in!functions!mode:! indicates$the$SciPlus42300$is$in$f(x)$mode$ First& set& of& operators:& & Push! f(x)! once.! ! The! four!soft!keys!allow!you!to!use!the!variables!a,! f(x) b,! c,! x! to! define! a! function! in! the! form! y=a(x-b)^2- y=f(a,b,c,x).! equation$ y=3.5 previous$result$ Second& set& of& operators:& Push! f(x)! again.!! Input$line$ This! second! set! of! soft! keys! allows! you! to! define!values!for!the!variables!a,!b,!c,!x.! $set$of$operators$ a= b= c= x=...
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Page 30: Calculating*Values*Of*F
Calculating*values*of*f(x)* Let’s!investigate!how!to!use!the!SciPlusB2500!in!functions!mode!by!evaluating!the!expression:! y=a(x4b) 1. Enter&functions&mode:!!First,!press!f(x)!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! ABD! ! (note! that! ‘D’! is! ‘x’! in! this! case),!as!follows:! a ×... - Page 31 SciPlusB2500!Scientific!Calculator!–!User!Manual 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.!! 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!0.5!in!the!results!line.!!If!you!have! ↵ not!yet!entered!a!value!for!a,!then!“a=…”!will!be!displayed!in!the!results!line.! You!can!clear!any!variable!using!the!garbage!can.!!E.g.:!!!a= ↵...
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Page 32: Exiting*Functions*Mode
6. Editing&the&equation:!!To!edit!the!equation,!use!the!enter!!!y$!!to!put!the!equation!into!the!input! line.!!Move!the!cursor!to!the!location!you!wish!to!edit.!!Remember!BKSP!!removes!operators!from! the!equation.!!Use!the!y$!!!!!!!to!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.! Exiting*functions*mode* You!can!exit!function!mode!by!simply!pressing!the!2 !key!followed!by!f(x).! Some*guidelines*while*in*functions*mode* • 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! get! will! an! UNDEFINED&... -
Page 33: Graphing&With&Your&Sciplus:2500
SciPlusB2500!Scientific!Calculator!–!User!Manual Graphing&with&Your&SciPlus:2500& y=a(x4b) Let’s!use! from!the!previous!section,!with!the!values!of!a=0.5,! y=0.5(x–2) b=B2,!and!c=TAN(45)!as!before:!!!! Pressing!!!!!!!!will!display!the!graph!shown!at!left.!!Note!the!default!scales! on!the!graph!are!as!follows:! cursor& xBaxis:! x !=!B10,!!x !=!10,!x !=!1! STEP yBaxis:! y !=!B10,!y !=!10,!y !=!1! STEP Viewing*the*Graph* When! you! are! viewing! the! graph,! you! can! use! the! ! keys! to! move! the! entire! graph! !!! "!! #!! $!! up/down/left/right.!!! If!you!press!the!soft!key!C!(think!“C!for!cursor”)!you!will!notice!that!the!crosshairs!indicating!the!current! -
Page 34: Using*The*Cursor
Using*the*Cursor* To!display!the!cursor!in!the!graph!as!shown!above,!press!!!!!!!!again!and!you! will!see!the!!screen!at!right!with!the!CURSOR!icon!at!the!top!(you!can!also! (x,y) (r,θ) get!to!this!screen!by!pressing!1).!!!Use!the!soft!key!A!to!navigate!to!the!top! x=1.0625 line,!the!use!the!soft!keys!C!and!D!to!select!Cartesian!coordinates!(x,y)!or! y=-0.560546875 polar! coordinates! (r,θ).! ! Note! that! θ! will! be! in! the! units! for! which! the! =-0.9375 SciPlus!is!currently!set!(degrees,!radians,!gradians).! The!next!two!lines!indicates!the!value!of!x!and!y!(or!r!and!θ)!for!the!current! cursor!position.!!Note!that!you!can!edit!the!x!value!to!move!the!cursor!to!a! new!position.!!You!can!only!edit!the!x!value!(independent!variable).!!The!y! value!(dependent!variable)!cannot!be!edited.! Note:!You!may!only!enter!x!values!that!are!within!the!current!displayed!range.!!If!you!attempt!to!enter!an! x!value!outside!this!range,!the!SciPlusB2500!will!default!to!a!point!close!to!the!edge!of!the!display.! Note:!If!you!enter!an!x!value!for!which!there!is!no!valid!y!value,!the!SciPlusB2500!will!default!to!a!nearby!x! value!that!is!valid!for!the!equation.! Note:!You!cannot!edit!the!x!value!when!in!polar!coordinates!mode.!!This!must!be!done!from!the!graph! itself,!as!described!on!page!27.! The!last!line!!!!!!!!shows!the!slope!of!the!graph!at!the!current!cursor!location.!!To!view!the!graph,!just! press!!!!!!!!!!again.! Page!28!of!35! version!1.2! - Page 35 SciPlusB2500!Scientific!Calculator!–!User!Manual & ©!2015,!Sight!Enhancement!Systems! Page!29!of!35!
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Page 36: Adjusting*The*Axes
Adjusting*the*Axes* There!are!three!screens!that!you!can!use!to!manipulate!the!scales!of!the!graph.! Press!the!!!!!!!!and!2!or!use!the!!!!"!!arrows!to!get!to!the!second!screen,! indicated!by!the!!!!!!!!symbol.!!On!this!screen!you!can!turn!the!grid!on/off.!! You!can!also!adjust!the!size!of!the!x!and!y!tick!marks.! E D I T The!third!screen,!indicated!by!the!!!!!!!!!symbol,!is!used!to!manually!adjust! the!range!for!the!x!and!y!axis.!!Note!that!the!SciPlus!will!never!allow!you!to! enter!a!minimum!value!that!is!larger!than!the!maximum!value!for!the!x!or!y! axis.!!Just!use!the!soft!keys!A!and!B!to!get!to!the!axis!end!point!you!wish! to!adjust,!and!select!soft!key!C!to!edit!the!value.! Note:!!If!you!are!graphing!a!trigonometric!function,!the!x!scale!values!will! π be!in!degrees,!radians,!or!gradians.!!You!can!use!!!!!!when!you!define!x!and!y! tick!mark!values!and!axis!ranges! E D I T To!view!the!graph,!just!press!!!!!!!!!!!again.! Page!30!of!35! version!1.2! - Page 37 SciPlusB2500!Scientific!Calculator!–!User!Manual The!fourth!screen!is!the!RANGE!screen,!indicated!by!!!!!!!!.!!Here!you!can!automatically!set!the!size!of!the!x! and!y!axis!as!appropriate!for!the!equation!that!is!being!graphed.!!The!four!settings!are!as!follows:!! “Square”!mode.!!This!mode!sets!the!x!and!y!axis!ranges!so!that!the! grid!lines!and!tick!marks!are!square.!!The!SciPlusB2500!optimizes!the! scales!to!show!the!graph!in!the!most!appropriate!size.! “Trigonometry”!mode:!!In!this!mode,!the!xBaxis!range!is!set!to!B360°! to! +360°,! B2π! to! +2π,! or! B400! to! +400! gradians,! depending! on! whether!the!SciPlus!is!set!to!D,!R,!or!G.! 10×10 “AutoBY”! mode:! ! In! this! mode,! the! yBaxis! range! is! set! so! that! the! S E T minimum! and! maximum! points! of! the! graph! within! the! current! xBaxis!range,!occupy!the!vertical!height!of!the!display.!! In! “10×10”! mode,! the! xBaxis! and! yBaxis! are! both! set! to! the! range! 10×10...
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Page 38: Solving*For*Zeros*(Poles)
Solving*for*Zeros*(Poles)* With!the!SciPlusB2500,!you!can!find!the!points!along!a!graph!for!which!y=0.!!These!are!called!the!“zeros”! or!“poles”!of!a!function.!!Note!that!some!functions,!such!as!a!sine!wave,!will!have!multiple!zeros.!!Others! may!have!none.! To!find!a!zero,!you!need!to!give!the!SciPlusB2500!a!hint,!by!telling!it!two!values!along!the!curve!near!the! zero.!!The!easiest!way!to!do!this!is!by!moving!the!cursor!left/right!(see!“Using!the!Cursor”!on!page!28).! When!you!have!the!cursor!slightly!to!the!left!of!a!pole,!push!the!soft!key!A.!!Then!move!the!cursor!right,! so!that!it!is!positioned!just!to!the!right!of!the!pole!and!push!the!soft!key!B.!!This!defines!two!xBvalues,! one!on!either!side!of!the!pole.! ZERO Press!!!!!!!!!!and!2!to!view!the!last!screen,!called!“ZERO”,!shown!at!right.!!You! can!see!that!the!A!and!B!xBvalues!you!selected!when!moving!the!cursor!are! displayed.! ! You! can! also! enter! or! edit! values! for! A! and! B! on! this! screen! A=3.25625 directly.! B=3.55625 Now!push!the!soft!key!D!“ZERO”!to!solve!for!the!zero!value.!!The!SciPlusB 2500!will!display!the!xBvalue!at!which!the!graph!meets!the!xBaxis!(y=0).!! E D I T C L R Z E R O Page!32!of!35! version!1.2! -
Page 39: A*Graphing*Example
SciPlusB2500!Scientific!Calculator!–!User!Manual A*Graphing*Example* y=0.5(x–2) Let’s!try!an!example!using!the!same!equation!as!before:! .!!!With!the!axis!set!to!“10×10”! mode!this!will!display!the!graph!shown!on!page!27.!!Let’s!first!adjust!the!axes!to!get!a!closer!look:!!Press!! and!then!3!to!change!the!xBaxis!range!to!B1!to!+5.! Now!press!4!to!select!the!RANGE!screen!!!!!!!!!!,!followed!by!!!!!!!which!will! set! the! yBaxis! range! to! maximize! the! size! of! the! graph! for! the! xBrange! you!specified.! When!you!again!push!!!!!!!!you!will!see!the!graph!at!right.!!Notice!that! there!are!two!zeros.!!Let’s!find!the!one!on!the!right.!!First,!make!sure!the! cursor!is!flashing!(the!soft!key!C).!!Then,!move!the!cursor!just!to!the!left! of!the!zero!as!shown,!and!push!the!soft!key!A.!!This!sets!one!of!the!two! ZERO search!limits!for!the!zero!finding!algorithm.!!Now,!move!the!cursor!just! to!the!right!of!the!zero!and!push!the!soft!key!B.!!! A=3.25625 Now! push! ! ! ! ! ! ! and! then! 5! to! get! to! the! ZERO! screen.! ! It! will! appear! B=3.55625 something!like!the!picture!at!right,!although!the!A!and!B!values!may!be! slightly!different.!! -
Page 40: Speech&Output
Speech&Output& Your!SciPlusB2500!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:! !! Read!status!line:! HINT:!!Always!ensure!that!the!volume!control!on!your!earbuds!is!turned!up.! Errors& Sometimes! you’ll! enter! things! incorrectly,! such! as! not! closing! a! !ERROR bracket!or!dividing!by!zero.!!In!this!case,!you’ll!get!a!SYNTAX&ERROR! message!like!the!image!at!left.! SYNTAX ERROR You! might! see! other! types! of! error! messages! such! as! “INVALID&... -
Page 41: Service
SciPlusB2500!Scientific!Calculator!–!User!Manual Service& If! for! any! reason! you! require! service! or! support! for! your! SciPlusB2500,! 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:! • The!serial!number!of!the!SciPlusB2500!(see!the!label!on!the!underside!of!the!calculator).! • The!authorized!manufacturer’s!representative!from!whom!the!SciPlusB2500!was!purchased.! • A!description!of!the!problem.! The! robustness! of! Sight! Enhancement! Systems! SciPlus! calculator! is! legendary,! and! you! should! enjoy! years!of!reliable!operation.! Warranty&... - Page 44 364!Huron!Avenue!South! Ottawa,!Ontario! K1Y!0W7! CANADA! www.sightenhancement.com&...
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