Citizen SR-270II manual = 840 7

[ MODE ] [ MODE ]	DEG RAD GRAD
	1	2	3
1 [ sin ] 30 [ = ]	sin 30		DEG
			￿
			0.5

Example 25

2π

cos ( 3 rad ) = – 0.5

[ MODE ] [ MODE ]	DEG RAD GRAD
	1	2	3
2 [ cos ] [ ( ] 2 [ 2nd ] [ π ] [ ⎟ ] 3 [ = ]		RAD
	cos ( 2	π / 3	￿
			– 0.5

Example 26

sin -10.5 = 30 Deg.

[ MODE ] [ MODE ]	DEG RAD GRAD
	1	2	3
1 [ 2nd ] [ sin –1] 0.5 [ = ]	sin –1	0.5	DEG
			￿
			30.

Example 27

cosh1.5 + 2 = 4.352409615

[ 2nd ] [ HYP ] [ cos ] 1.5 [ + ] 2 [ = ]	DEG
	cosh 1.5 + 2	￿
	4.352409615

Example 28

sinh -17 = 2.644120761

[ 2nd ] [ HYP ] [ 2nd ] [ sin –1] 7 [ = ]	sinh –17	DEG
		￿
	2.644120761

Example 29

12.755 = 12 ￿ 45 ￿ 18 ￿

12.755 [ = ] [ 2nd ] [	]	12.755	DEG
			￿
		12 ￿ 45 ￿ 18 ￿

Example 30

2 ￿ 45 ￿ 10.5 ￿ = 2.752916667

2 [	] 45 [	] 10.5 [	] [ = ]		DEG
				2	° 45 ° 10.5 °	￿
					2 ￿ 45 ￿ 10.5 ￿
[	]				DEG
				2	° 45 ° 10.5 °	￿
					2.752916667

Example 31

￿If x = 5 , y = 30, what are r , θ ° Ans : r = 30.41381265 θ = 80.53767779 °

[ ALPHA ] [ Pol ( ] 5 [ , ] 30 [ = ]		DEG
	Pol ( 5, 30		￿
		30.41381265
[ 2nd ] [ RCL ] [ F ]	F =	DEG	￿
		80.53767779

Example 32

￿If r = 25 , θ = 56°, what are x , y ? Ans : x = 13.97982259 y = 20.72593931

[ ALPHA ] [ Rec ( ] 25 [ , ] 56 [ = ]		DEG
	Rec ( 25, 56		￿
		13.97982259
[ 2nd ] [ RCL ] [ F ]	F =	DEG	￿
		20.72593931

Example 33

7 ! = 840 [(7 – 4)]!

7 [ 2nd ] [ nPr ] 4 [ = ]	7 lP 4	DEG
		￿
		840.

Example 34

7 ! = 35

4 ![(7 – 4)]!

7 [ 2nd ] [ nCr ] 4 [ = ]	7 lC 4	DEG
		￿
		35.

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