RealCalc科学计算器使用说明Word格式文档下载.docx

RealCalc科学计算器使用说明Word格式文档下载.docx

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The[SHIFT]keyisusedtoaccessthesecondaryfunctionofeachkey（displayedabovethekeyinorange.Whileshiftisactive,'

SHIFT'

willbeshownonthedisplay.Press[SHIFT]againtocancelshiftmode.

Asanalternativetousingshift,thesecondaryfunctionofeachkeycanalsobeaccessedbyholdingdownthekey.ThisfeaturecanbedisabledinSettings.

====DisplayModes====

===DisplayModes===

Therearefourdisplaymodesforcalculationresults.Usethe[FSE]keytocyclethroughthemodes.Thedisplaywillshow'

FIX'

'

SCI'

ENG'

orblanktoindicatethecurrentmode.

===DecimalPlaces===

TosetthenumberofdecimalplacesinFIX,SCIorENGmodes,press[SHIFT][TAB].Thiswillbringupadialogtoselectthenumberofplacesfrom0to9,togetherwiththecurrentvalueroundedtoeach.===Normalmode===

Theresultisdisplayedasanormalfloatingpointvalueifpossible.Ifitsmagnitudeislessthan0.0001orgreaterthan9999999999,thenscientificnotationisused（seeSCImodebelow.Thenumberofdecimalplacescannotbeadjustedinthismode.

===FIXmode（Fixeddecimalpoint===

Theresultisdisplayedafterroundingtothenumberofdecimalplacesselectedby[SHIFT][TAB].Ifthereisnotenoughroom,theresultmaybedisplayedwithfewerdecimalplaces.

===SCImode（Scientificnotation===

TheresultisdisplayedintheformatAx10^B^,withthemantissa（Aroundedtothenumberofdecimalplacesselectedby[SHIFT][TAB].

===ENGmode（Engineeringnotation===

ThisisthesameasSCImode,exceptthattheexponentissettoamultipleof3.

===Note===

Thevalueusedforcalculationsistheunroundedresultstoredinternally,andnottheroundedvalueshownonthedisplay.

====ResultHistory====

===ResultHistory===

Eachtimethe[EQU]keyispressed,thecalculationresultisaddedtoahistorylist.

The[ANS]keypresentsadialogshowingthecalculationresulthistory,withthemostrecentresultsatthetop.Selecttherequiredvaluetoenteritintothecalculator.

===HistorySize===

ThemaximumnumberofresultswhicharestoredcanbesetviatheSettingsscreen（Menu->

Settings.Whensetto'

Off'

the[ANS]keysimplyrecallsthelastresult,withoutshowingadialog.

===UniqueHistory===

Bydefault,thevaluesinthehistorylistareunique.Ifacalculationresultisthesameasonealreadyinthehistorylist,thisvalueismovedtothetop.ThisbehaviourcanbechangedviatheSettingsscreen.===HistoryReset===

ThehistorylistcanalsobeclearedviatheSettingsscreen.

====Memories====

===MainMemory===

Themainmemoryhasfourdedicatedfunctionkeys:

~[MS]storesthecurrentdisplayvalueintothemainmemory.

~[MR]recallsthevaluestoredinthemainmemory.

~[MP]addsthecurrentdisplayvaluetothemainmemory.

~[MM]subtractsthecurrentdisplayvaluefromthemainmemory.

Wheneveranon-zerovalueisstoredinthemainmemory,theletter'

M'

isshownonthedisplay.

Themainmemorycanalsobeaccessedviathe[STO]and[RCL]keys（seebelow.

===AdditionalMemories===

Therearenineadditionalmemorieswhichcanbeaccessedviathe[STO]and[RCL]keys.Thesekeysshowadialogwiththecurrentvaluesstoredinthemainmemory'

andtheadditionalmemories'

1'

to'

9'

.Selecttheappropriatevaluetostoreorrecallthememoryvalue.

===MemoryReset===

ThevaluesstoredinallthememoriescanberesettozeroviatheSettingsscreen.

====UnitConversion====

===UnitConversion===

Thecurrentdisplayvaluecanbeconvertedbetweendifferentunitsusingthe[CONV]key.

~First,selecttheunittypefromthelist（distance,area,speed,time,etc.

~Second,selecttheunittoconvertfrom.Dragthelistup/downtoscrollifnecessary.

~Thedialogwillshowthevalueconvertedtoallappropriateunits,withtheoriginalvaluehighlightedinorange.

~Selecttherequiredvaluetoenteritintothecalculator.

~Pressthebackbuttonatanytimetogobacktothepreviousstep.

===ZeroValues===

Formostconversions,anoriginalvalueof0.0willbereplacedby1.0asaconveniencetoavoidconvertingzerotozero.Thisdoesnotapplytoconversionswhicharenotasimpleratio,e.g.temperature.

Theunitconversiondialogonlydisplaysvaluesindecimal,thecurrentradixmode（BIN,OCTorHEXisignored.

====BasicFunctions====

===ArithmeticCalculations===

Theseareenteredexactlyaswritten:

25[MUL]3[EQU]{75.}

Operationscanbejoinedtogether:

12[ADD]3[SUB]4[EQU]{11.}

Multiplicationanddivisionhaveprecedenceoveradditionandsubtractionandwillbeperformedfirst: