Sharp PC-1403 - Page 33

So l ve fo r x = 6 and y = 4
Ang u l a r unit: D EG
Ke y in: 6 [I] 4 I s H 1 n I i;;r' 8 1 An s we r : 7 . 21110 2 551 ( r)
Key i n : [I] A ns wer : 33 . 69 006 753 (8 )
Calcula t e th e m ag n i tu de and d i re cti on (p h ase ) in vec tor i = 1 2 + j9
Key in: 1 2 rn 9 I S H I F T I ~ Ans w e r : 15 (r)
Key in: [I] Ans w e r: 36 . 86989765 ( 8 )
27
DEG : 0 ~ I 8 I ~ 180
R A D : 0 ~ I 8 I~ rr
GR AD : 0 ~ 181 ~20 0
r = v'x 2 + y 2
( r , (J )
tr
y (x , y) y lt , ,/ / P
y - r
0 x X 0 (J - - - - - X
12. Coordinates Conversion
Convert i ng r ectan gu l ar coo r d i na t es t o po l a r ( x , y --+ r , 8 )
A racehorse h as th e t ra ck t i mes of 2 mi n u t es 25 seco n ds, 2 m inutes 38 seconds,
and 2 minutes 22 seco n ds . Wha t i s t h e av era ge running time of the horse?
Key in: .0225 ~ [±] . 0238 ~ W . 0 222 ~ @]
Answer 1 : 0 . 123 61 1111
Key in: GJ 3 @.]
Answer 2 : 0 .0 4 1 203703
Key in : l sH1n l ~
Answe r 3: 0 . 0228 3 3333 or th e a ve r age tim e is 2 min ut es 28 s econds
Wh e n co n ve rt ing an ang le i n d eci m a l deg re e s to i t s s e xa g esi m al equ iv ale nt
( d e gr ees / min u t e s / seco n ds) , t h e ans w e r i s b r ok en d ow n : i n tege r part =
degrees ; 1s t and 2 nd d ec i m a l d i git s = minu t e s ; 3 r d a nd 4th d ig its = seco n d s ;
and t he 5 t h d ig it a n d up = fra c t i o n a l s e co n ds .
Conv ert 2 4 . 7 256 t o i ts sexa g esima l eq ui v a le n t (d e grees / min u te s/seco nds)
Key i n : 24 .72 56 I sH1 FT } ~
Answe r : 24.4 3 32 16 or 24 ° 43 ' 3 2"
11. Angle/Time conversions
T o conv ert an ang l e g iven in t he s ex a ge s i m a l s y st e m ( degrees / m i n ute s /s e c -
o nd s ) t o i ts decimal e qu i va l ent , a va l u e i n deg re es mu st b e ent ered as a n inte ger
an d valu es i n m i n u t es a n d se c o nd s as de c i m a l f r ac ti on s , res p e ct i vely.
Convert 1 2 ° 47 ' 52 " to it s de ci ma l eq u i va l en t.
K e y in : 12.4752 ~
An s wer: 12 . 7977777 8
Calcu l ate:
547
-
473
x 100
473
K ey i n: 547 B 473 I sH 1 FT I Li"l!:l
A nsw e r : 15 . 6448203
Using a s a Calculator