Casio FX-82AU PLUS manual

1 Using the Casi o fx-82AU PLUS Sci entific Calculator Te chn ique s and ac tivi ties © S u e T ho mson and S hriro A us tra lia PTY L imit ed Cas io Ed uca ti on d ivis ion T he pages an d act ivit ies i nclud e d in th is pub lic ation ma y be co pie d for clas sroo m use .[...]

2 Pu bl ishin g infor mat io n Pu blishe d by Sue Tho ms o n Cop yr ight © Sue Thoms o n and Shr iro Aus t ra lia PTY Lim ite d, Cas io E du cat ion D ivis i o n 20 08 Fir st p ublish e d in 2 00 8 Repr o duct io n and comm u nica tion for educat i o na l pu rpose s All r ig ht s res erved. No part o f th is p ub licatio n m ay be s tor ed in a[...]

3 Cont e nts Pag e Ge ttin g starte d …… … ………… ……………… ……………… …………… … …. 4 M athI O disp la y … …… ………… ……………… ………… … …… ………… ……. 4 Line I O displa y ……… …… ………… ………… ………… ……… …… …… …… …. 4[...]

4 Gett ing st art ed Af ter you h ave turn e d the ca lcu lator on th e first s te p is to cho o se w hether yo u wa nt to do a calc u lation or to wo rk in sta tis t ics. Pre ss t he M O DE ke y t o enter yo ur cho ice of calcu la tions (i.e. co mput ation ) or st atist ics . Pres s 1 for c alculat ion or 2 for statis t ics . The C omp (c alc u[...]

5 Set up inf orm ation Set ting the c a lculator t o d egre es or r ad ians W hen yo u are in the c omp mode pre ss S HI FT M O DE (SE T UP) an d the follow ing scre en w ill be disp la yed . Pres s 3 for degr ees o r 4 f or radian s . Set ting dec imal p laces an d sc ien tif ic not ation To fix t he numb e r of d ec ima l p laces W hen yo u ar[...]

6 Fract ions an d d ecim a ls T he key s tro kes for frac tion s are s ligh tly di ffe re n t in the Ma th mode than in the Line mo de . Fr a ctions in the Lin e mod e Us e t he a but ton to en ter any ex pres sio n involv i ng fra ct ions in the s ame w a y as the z butt on wa s used in t he pa st . To en ter 1½ + 3¾ pr es s 1 a 1 a 2+3 a3a4p[...]

7 Re member you can togg l e be twe en the an sw er disp laye d as an im prope r f raction , mix e d n umera l an d de ci mal. R efer to th e section ‘an swers in di fferen t forms ‛ on t he pr evio u s pa ge. Si mp lif yin g fr act ions In e ither mo de the ca lc ulator wi ll ex pres s a fract i o n in its s im plest for m. En ter the fr ac[...]

8 Neg at iv e, f rac t i on a l ind ice s T he calcu lator c an exec ute an im press ive r ange of ca lculatio ns w ith n ega tive an d po sitiv e frac tion a l in dices . o r Oc cas ion ally th e wh o le scree n can ‛t be di spla yed in th e ma th mo de , b ut the ca lc ulation rema i n s po ssib le. N a tura lly th e follow ing calc ulat ion[...]

9 P ower s a nd r o ots Det erm i ning p owers Bo t h sc reens s how the va lue of 1.5 3 . T he b utton pre ssing is th e same in bo th mo des . 1.5f3p . OR Det erm i ning ro o ts T he F b utton is use d to de term ine roo ts . The scr eens sh ow th e value of the 5 t h roo t of 102 4. The b utton pre ss ing in ea ch mo de is show n be low th e [...]

10 Trig onom et ry Be for e start ing an y c alc u lations in volving trigono me try alw a ys chec k t he ang le mea sure fo r deg rees , ra d ians or gra di ent s . If the angle me as ure isn ‛t cons is ten t wi th t he ty pe of angle be ing use d, all ans w er s wi l l be wro ng. A D at t he t op of the scre en in dica tes that the ca lculat[...]

11 Cha ng ing a d eci m al to d egr ees, min ut es and se con ds Pres s SHIFT x to expre ss 57.3390 8 o in de g ree s , min utes an d sec onds . Cha ng ing ra d ians in to d egree s or d egr e es int o ra d ia n s W hen yo u are con vertin g ang l e type s you MUS T ha ve the c alculator se t to the ty pe of ang le you ar e con ver ti ng I NTO .[...]

12 The statist ics menu H int! When yo u ar e go ing to wor k in sta tis tics sta rt w ith the ca lculator t urne d off . T hen yo u kno w a ll the s tatis tics memor i e s ar e empt y. The data is cle are d au to matica lly w hen th e calcu lator is turne d of f or the s tatis ti cs men u i s ex ite d. T urn th e ca lculato r on . A ft er yo u [...]

13 T he optio ns fo r sta tisti cs are in 3. Pr ess 3 t o vi ew t he opt ions. Pres s 1 if you w an t to ha ve a sepa rate list for f re q uencie s an d 2 if you w ant t o en ter scor es w i t hout fr e quen c ies. Ex ample Le t‛s find the su mm ary s tatis t ics for the f o llowing se t of sc or es. 4, 6, 2, 8 , 3, 9, 12, 6 , 4, an d 5. St ep[...]

14 1 : T yp e t a kes you b ack to the f i rs t s creen in th is sect ion of the n ote s . 2 : Dat a ta kes you b ac k to the en te re d data . This is idea l fo r chec king stu d ent da t a en tr ies . Da ta a lso allow s you to inse rt a score or de l e te all the s cores. C au tion ! If yo u e dit or cha nge the da ta ma ke sure th at yo u pr[...]

15 Pres s C w hen yo u h ave co mple t e d the d ata ent ry st age . Do n ‛t pan i c wh en th e scor es disappear. The pro cess f o r finding the mea n and stan da rd de vi ation is th e sa me as o utline d in the exa mple us ing s cores w it hou t fre q uen c ies. In the sc ores wi th freq uen cies ex a mple t he me an is 5.1 an d th e stan d[...]

16 Us ing the me mo r ies T he ca lcu lator h as a n indepe n den t memor y th at ca n s tore the res ult of a ca l c ulat ion . In a ddition t here ar e six pron umera l s A, B, C, D , X an d Y w hich may be a ss i gne d va lues . The in d epend en t memor y M Be for e you s tar t us ing the m em ory, ch e ck tha t t here is no thing in the me [...]

17 Tips a nd hint s! Us ing br acket s It is no t ne ces sar y to en ter th e final b ra cke t. Scr o lling thro u g h prev io us entr ies W hen there is a small up E o r do w n R a rrow dis pla yed in th e win dow yo u can rev iew prev ious en t ries an d an sw ers by scro lling up or do w n using the top or bottom of the re play bu tton . Set [...]

18 Tro ub le sh o otin g The c a lculator is usi ng a comm a in plac e o f a dec imal po int So l ution : In ‘di sp lay ‛, ‘comm a‛ h as be en se lecte d in stea d of ‘do t‛. In the ca lcula t ions men u press SHI FT MO DE (SE T UP) th en a rrow dow n b y pres s ing the botto m o f the ro und rep la y b utton . Pres s 4 (for di sp l [...]

19 The c a lculator is rec a lling the wro ng value fo r a v a lue in the memor y Yo u m ust clear the memo r y be for e plac i n g a new v alue i n the me mory . The cle ar fun ct ion i s the se con d fun ction on 9 . Pr ess S H I FT 9 the n follow t he ins tr uction s on the screen . The c a lculator is fro ze n In the m iddle of the ba ck of [...]

20 Fract ion s an d D ecim a ls Re me m ber!  Whe n you have  afracti on o rad ec ima l d isp lay ed onth esc reen  p r ess ing the n  bu tton will allo w yo u toto gg le betwe en deci mal and fracti on alrep res ent ation .Pre ssin g S HIFT n  will to ggle[...]

21 Percentages  1  Th e screen sho t show sth eca lcu lato rconve rtin g25% to a fract ion . En te r25%b yp re ss i n g 25 S HI F T (  fol low ed  b y p t o c h ec kth evalue  o f 25 % asa f rac tion .  2  Ex p r e ss each perce n tage asafra[...]

22 Wor king with fr act ions  Prac tise the  c alcu lato rf racti on ssk illsout lined on  p age s 6 an d7w ith the fol lo win g que s tions th atin vol vefract ions .R eme m b e r t ous et he roun d repla ybu tt onto pos i tionthe cu rsorc o rrect lywh en [...]

23 Fix, sci e nti fic not at ion a nd n orm Rem e mb er!  Whe n you wa n ttoc ance lf ix o rsc ient ificno t ationch oo se Norm 2 .Re fer to p a ge5 forfix and sc ient ificno t ation proce du r es.  1.  E x p r e ss 65123 in sc ient i f i c no ta tionwi th [...]

24 Roots a nd ex pone nts  But ton p rocedu r e sf o r  ro o tsand e xponen tsare on  p age s7to 9. R e membe rth atyou can us ethe n  bu tton toto g glebe twe enfrac tio nsan d deci mal sifyou  wan t youran s werina di ff e ren tf o rm .  1.[...]

25 Trig onom et ry The in str u ctions for wor k ing wi th tri gon ome try are on pa ges 1 0 and 11. Che ck y our c alcula to r s ett in gs!  Th e st atemen t 0 sin 30 0.5 =  isc o rrect .Exp l ainwh ybo th  o f th e follo w ing c alcu lato r sc reen sared isp la yingt he wron g value f[...]

26 Stati stic s  Th e button pre ssin gsequ enc e f o rsta tist ics ison p age s12t o 15. Rem e mb er! ·  Whe n you have  finishe d ente rin gthe d ata youmust p re ss C to  tel lthe c alcu lato r th atyou h ave comp l e teden terin gthe sco[...]

27 Using the me mories Rem e mb er!  You  mu st cle arthe memo ryb e f o reyo u pl ace anyth in gi n  the me mory.Ifyo u  f orge tto clea rth eme mo ry th e  c alcu lato rwillad d the ne wvalue  to the valu e t h at is alread yin the me mo ry[...]

28 Deg re es Û Ra d ians Rem e mb er!  Th e sm all  c  in thee xpression c 1.4 me an srad ians .Whe n you wan tto ch a n ge fr om de grees t o rad ians,o rthe  rev erse,you m u sthav ethe ca lcul atorse t  o n th e measu re you arec h an gin g?[...]

29 Logs, n atur al log s an d e  Th e calcu la t o r uses g  forlogb a se  10 and h  f orlo gb as e e . Yo u don ’ th aveto rem emb e rwh ichbu t ton iswh ich.All you  nee d to  do isloo katthe sec ond f u n ct ionabo ve ea ch  b u tt[...]

30 Gal lipol i Au str a lia an d New Zeala n d jo in ed t he Firs t Wor ld War 1  In191 5 so ldiersfromAu st ra lia and Ne wZea land jo ineda llies fro mBrit ain,F ranc ean d I nd iat o fighta ga inst soldiers  fromT urke yin theG a llip oliC ampa ign.As you wor [...]

31  E  In191 5 thea vera g eageofAus tra lian and Ne wZea land soldi erswa s2 8 y ears.  (i )  Howma ny yea rsyou nger tha n28wa sthea vera gea geofth esa mpleo fANZA C soldier sk illed inG a llip oli ?  (ii)  Ca l culat ethisa ge[...]

32 Waiti ng t i m e i nv estiga ti on  O n avera ge,ho wlongdo cus to mers wa i t inyou rsc ho olcan teen q ueue b eforethe yha v e comp letedth eirp u rcha se s? I nth isac tivit y you willb e invest iga tingth is q uest i o nan deva lua ting the res[...]

33 P l ayi ng dic e sim u latio n Si mulat ion 1  When youro llapa irofnor mal ,6 sidedd ic etoget her an da dd thenu mbers sho wing, what isth e most like lytota l? Wh at yo u hav e to do ·  Entert hefor mulaR a nI nt# (1 ,6 )+R an Int # (1 , 6 )intoy [...]

34 Subtrac ting dic e Bing o The g am e r u les ·  Th eva luescall edint h isga meofb ingo  willb edeter min edb ysub tra cti n gthenu mbe rs showing ona  p a irofnorma l 6  sided di ce.T hes ub tr ac tionwil l a lwa ys bet heb iggerva lu e subt ra c[...]