Sharp El531wh User Guide
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10 Basic A rith m etic K eys , P are n th e se s U se d t o s p ecif y c alc u la tio ns in w hic h c e rta in o pera tio ns h ave p rece d en ce. Yo u c an m ake a dd it io n a n d s u btr a c tio n o pera tio ns h ave p rece d en ce ove r mu lt ip li c atio n a n d d iv is io n by e n clo sin g t h em in p are n th ese s. T he fo ur b asic o pera to rs. E ac h is u se d in t h e s a m e w ay a s a s ta n d ard c alc u la to r: + ( a dd it io n), – (s u btr a c tio n), x ( m ult ip li c atio n), a n d ¸ ( d iv is io n). F in d s t h e re su lt in t h e s a m e w ay a s a s ta n d ard c alc u la to r.
11 Fo r c alc u la tin g p erc e n ta ge s. F o ur m eth o ds o f c alc u la tin g p erc e n ta ge s are p re se n te d a s fo llo w s. 1) $12 5 in cre ase d by 10 % …137 .5 2 ) $12 5 re d uce d by 2 0% …100 3) 15 % o f $12 5…18.7 5 4) W hen $125 e q u als 5 % o f X , X e q uals …2 500 12 51 0 12 52 0 12 51 5 12 55 Perc e nt DEG DEG DEG DEG
12 Calc u la te s t h e s q uare ro ot o f t h e v alu e o n t h e d is p lay. C alc u la te s t h e inve rse o f t h e v alu e o n t h e d is p lay. S q uare s t h e v alu e o n t h e d is p lay. C ubes t h e v alu e o n t h e d is p la y . C alc u la te s t h e c u be ro ot o f t h e v alu e o n t h e d is p lay. C alc u la te s t h e xth r o ot o f y. 2 4 416 DEG DEG DEG O pera tio nD is p lay C alc u la te s e x p o nen tia l v alu es. 2222 In ve rs e , S quare , C ub e, x th P ow er o f y ,S quare R oo t, C ube R oot, x th R oot o f y
13 10 t o t h e P ow er o f x , C om mon L ogarith m C alc u la te s t h e v alu e o f 10 r a is e d t o t h e xth p ower. C alc u la te s lo garit h m , t h e e x po nen t o f t h e p ower t o w hic h 10 mu st b e ra is e d t o e q ual t h e g ive n v alu e. 1 000 3 O pera tio nD is p lay DEG DEG
14 e t o t h e P ow er o f x , N atu ra l L ogarit h m C alc u la te s p o wers b ase d o n t h e c o nsta n t e ( 2 .718 281828). 5 1 0 O pera tio nD is p lay DEG DEG C om pute s t h e v alu e o f t h e n atu ra l lo garit h m , t h e e x po nen t o f t h e p o w er t o w hic h e m ust b e r a is e d t o e q ual t h e g iv e n v alu e.
15 Facto ria ls T he p ro duct o f a g ive n p o sit ive in te ge r n mu lt ip lie d by a ll t h e le sse r p o sit ive i n te ge rs fro m 1 t o n-1 is in d ic ate d b y n! a n d c alle d t h e fa c to ria l o f n. A PPLIC ATIO NS: U se d in s ta tis tic s a n d m ath em atic s. In s ta tis tic s, t h is fu nctio n is u se d in c alc u la tio ns invo lv in g c o m bin atio ns a n d p ermu ta tio ns. c .f n! = 1 x 2 x 3 x …xn O pera tio nD is p lay DEG 7
6 6 16 APP LIC ATIO NS: U se d in s ta tis tic s ( p ro bab il it y c alc u la tio ns) a n d in s im ula tio n h yp o th - ese s in fie ld s s u ch a s m ed ic in e, p harm ac e u tic s, a n d p hysic s. A ls o, c an b e u se d t o d ete rm in e t h e c h an ce s o f w in n in g in lo tte rie s. P erm uta tio ns, C om bin atio ns T his fu nctio n fin d s t h e n um ber o f d if fe re n t p o ssib le o rd erin gs in s e le ctin g r o bje cts fr o m a s e t o f n o bje cts . F o r e x am ple , t h ere a re s ix d if fe re n t w ay s o f o rd erin g t h e le tte rs A BC in g ro ups o f t h re e le tte rs—A BC , A C B, B A C , B C A, C AB, a n d C BA . The c alc u la tio n e q uatio n is 3P3 = 3 x 2 x 1 = 6 ( w ays). T his fu nctio n fin d s t h e n um ber o f w ay s o f s e le ctin g r o bje cts fr o m a s e t o f n o bje cts . F o r e x am ple , fr o m t h e t h re e le tte rs A BC , t h ere a re t h re e w ay s w e c an e x tr a c t g ro ups o f t w o d if fe re n t le tte rs—A B, A C , a n d C B. T he c alc u la tio n e q u atio n is 3C2. DEG DEG O pera tio nD is p lay
17 Tim e C alc u la tio n C onvert 2 4° 2 8 ’ 3 5 ” (2 4 d egre es, 2 8 m inu te s, 3 5 s e c- o nd s) t o d ecim al n o ta tio n. T hen c o nve rt 2 4 .4 76 ° t o s e x age sim al n o ta tio n. C onverts a s e x ag e sim al v alu e d is p laye d in d egre es, m in ute s, s e co nd s to d ecim al n o ta tio n. A ls o, c o nverts a d ecim al v alu e to s e x ag e sim al n o ta ta io n (d egre es, m in ute s, s e co nd s). In p uts v alu es in s e x age sim al n o ta tio n (d egre e s, m in ute s, s e co nd s). A PP LIC ATIO NS: U se d in c alc u la tio ns o f a n gle s a n d a n gu la r v e lo cit y in p hysic s, a n d la tit u d e a n d lo ngit u d e in g e o gra p hy. 2 42835 O pera tio nD is p lay R ep eat la st key o pera tio n t o re tu rn t o t h e p revio us d is p lay. C onvert t o d ecim al n o ta tio n DEG DEG DEG
18 Fra ctio nal C alc u la tio ns A dd 3 a n d , a n d c o nvert t o d ecim al n o ta tio n. In puts fr a c tio ns a n d c o nverts m utu ally b etwe e n fr a c tio ns a n d d ecim als . C onverts b etwe en m ixe d n um bers a n d im pro per fr a c tio ns. 3 12 5 7 Convert t o a n im pro per fr a c tio n Press o nce t o re tu rn t o t h e p revio us d is p lay C onvert t o d ecim al n o ta tio n Press o nce t o re tu rn t o t h e p revio us d is p lay A PPLIC ATIO NS: T here is a w id e v arie ty o f a p p li c atio ns fo r t h is fu n ctio n b ecau se fr a c tio ns a re s u ch a b asic p art o f m ath em atic s. T his fu nctio n is u se fu l fo r c alc u la tio ns in vo lv in g e le ctr ic al c ir c u it r e sis ta n ce . DEG DEG DEG O pera tio nD is p lay DEG 1 2 5 7
19 Sto res d is p laye d v alu es in m em orie s A ~F, X , Y, M . Recalls v alu es s to red in A ~F, X , Y, M . Adds t h e d is p laye d v alu e t o t h e v alu e in t h e in d ep en d en t m em ory M . Mem ory C alc u la tio ns 2 527 7 3 DEG MDEG MDEG MDEG Opera tio nD is p lay ~ Te m po ra ry m em orie s ~ (E nte r 0 fo r M ) 0 Su btr a c ts t h e d is p la y e d v alu e fr o m t h e v alu e in t h e in d ep en d en t m em ory M . In d ep en d en t m em ory O pera tio nD is p lay C alc u la te s $ /¥ a t t h e d esig n ate d e x ch an ge r a te . 1 10 26510 2750 $1 = ¥110 ¥26,510 = $? $2,750 = ¥? DEG 110 Y DEG 26510 DEG 2750