Citizen SRP-265N: FUNCTION CALCULATIONS

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2009/4/15 

-E11- 

(Ex.) : 7 – 5.6 = 1.4 

–4.5 – 5.6 = –10.1

7 [ – ] 5.6 [ = ] 

  

DEG   

1.4

4.5 [+/–] [ = ] 

  

DEG   

–10.1

(Ex.) : 12 x 2.3 = 27.6 

 12 

x (–9) = –108

12 [ x ] 2.3 [ = ] 

  

DEG   

27.6

9 [+/–] [ = ] 

  

DEG   

–108.

(Ex.) : 74 

÷

 2.5 = 29.6 

 85.2 

÷

 2.5 = 34.08

74 [ 

÷

 ] 2.5 [ = ] 

  

DEG   

29.6

85.2 [ = ] 

  

DEG   

34.08

Memory Calculations 

•

  Do not set the function mode to  “ STAT ” when performing memory 

calculation. 

•

  A new number entered into memory by pressing [ X

Æ

M ] repalces 

any number previosly stored. 

•

  To clear the memory’s contents, press [ 0 ] [ X

Æ

M ] or [ ON/C ] 

[ X

Æ

M ] in sequence. 

•

  M appears when a number which is not equal to “ 0 ” is stored in 

memory. 

•

  When you press [ X

Æ

M ] after pressing [ MR ], the displayed 

number is changed as the contents of the memory. 

(Ex.) : (3 – 5) + (56 

÷

 7) + (74 – 8 x 7) = 24

0 [ X

Æ

M ]  

  

DEG   

0.

3 [ – ] 5 [ M+ ]  

M

  

DEG  

–2.

56 [ 

÷

 ] 7 [ M+ ] 

M

  

DEG  

8.

74 [ – ] 8 [ x ]  7 [ M+ ] 

M

  

DEG  

18.

[ MR ] 

M

  

DEG  

24.

0 [ X

Æ

M ]  

  

DEG   

0.

FUNCTION CALCULATIONS 

Sexagesimal 

↔

 Decimal conversion 

(Ex.) : 12

∘

45’

30” = 12.75833333

12 [

‧

] 4530 [ 2ndF ] [

]  

   

DEG

   

  

12.75833333 

(Ex.) : 2.12345 = 2

∘

7’ 24.42”

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2009/4/15 

-E12- 

2.12345 [ 2ndF ] [

 ] 

   

DEG

  

2.072442 

Before performing the following calculation, check to see that your 

calculator is fixed at 2 decimal disaply format. 

Fraction Calculation 

•

  By pressing [ 2ndF ] [  d/e ], the displayed value will be converted 

to the improper fraction. 

(Ex.) : 

15

124

5

3

7

3

2

=

+

2 [ a

b/c ] 3 [ + ] 7 [ a

b/c ] 3 [ a

b/c ] 5 [ = ]  

   

DEG

  

8 

∪

 4 

┘

15 

[ 2ndF ] [  d/e ] 

   

DEG

  

124 

┘

15

•

  When a press of [ a

b/c ] key after the [ = ] key or a fraction 

performed with a decimal, the answer is displayed as a decimal. 

(Ex.) : 

9.19

16

7

9

4

3

3

9

4

5

=

=

+

5 [ a

b/c ] 4 [ a

b/c ] 9 [ + ] 3 [ a

b/c ] 3        

[ a

b/c ] 4 [ = ]  

  

DEG 

  

9 

∪

7 

┘

36 

[ a

b/c ] 

   

DEG

  

9.19

Trigonometric / Inverse – Tri. Functions 

(Ex.) : 3 sin 30 

∘

= 1.50

3 [ x ] 30 [ sin ] [ = ] 

  

DEG   

1.50

(Ex.) : cos ( 

3

2

π

 rad) = – 0.5 

2 [ x ] [ 2ndF ] [ 

π

] [ 

÷

 ] 3 [ = ] [ cos ] 

  

RAD   

– 0.50

(Ex.) : sin 

–1

 0.5 = 30 (deg) 

0.5 [ 2ndF ] [ sin 

–1

 ] 

  

DEG 

30.00

(Ex.) : cos 

–1 

(

2

1

) = 0.79 (rad) 

2 [ 

√

 ] [ 2ndF ] [ 1/x ] [ 2ndF ] [ cos 

–1 

] 

  

RAD   

0.79

Hyperbolic Functions and Inverse – Hyp. Functions 

(Ex.) : cosh 1.5 + sinh 1.5 = 4.48 

1.5 [ 2ndF ] [ HYP ] [ cos ] [ + ] 

1.5 [ 2ndF ] [ HYP ] [ sin ] [ = ]  

  

DEG   

.

   

  

4.48

(Ex.) : sinh 

–1 

7 = 2.64 

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2009/4/15 

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7 [ 2ndF ] [ HYP ] [ 2ndF ] [ sin 

–1 

] 

   

DEG

   

  

2.64

Common And Natural Logarithms / Exponentiations  

(Ex.) : ln7 + log100 = 3.95 

7 [ ln ] [ + ] 100 [ log ] [ = ] 

   

DEG

   

  

3.95

(Ex.) : 10 

2

 = 100.00 

2 [ 2ndF ] [ 10 

x

 ] [ = ] 

   

DEG

   

  

100.00

(Ex.) : e 

5

 – e 

–2

 = ? 

5 [ 2ndF ] [ e 

x

 ] [ – ] 2 [ +/– ] [ 2ndF ]  

[ e 

x

 ] [ = ] 

   

DEG

   

  

148.28

Power, Root, Reciprocals, Factorials 

(Ex.) : 

5.29

5

3

2

=

×

+

2 [

√

]

[ + ] 3 [

√

]

[ x ]

5 [

√

] [ =

] 

   

DEG

  

5.29

(Ex.) : 

1.29

–

27

–

5

3

3

=

+

5 [ 2ndF ] [ 

3

√

] [ + ] 27 [ +/– ] [ 2ndF ]    

[ 

3

√

 ] [ = ] 

   

DEG

   

  

–1.29

(Ex.) : 7 

5

 = 16807 

7 [ x 

y 

] 5 [ = ] 

   

DEG

   

  

16807.00

(Ex.) : 

2

32

5

=

32 [ 2ndF ] [

y 

 x

 ] 5 [ = ]  

   

DEG

  

2.00

(Ex.) : 

12.00

4

1

–

3

1

1

=

3 [ 2ndF ] [ 1/x ] [ – ] 4 [ 2ndF ] [ 1/x ] [ = ] 

[ 2ndF ] [ 1/x ] 

   

DEG

   

  

12.00

(Ex.) : 123 + 30 

2 

= 1023.00

123 [ + ] 30 [ x 

2

 ] [ = ] 

   

DEG

   

  

1023.00

(Ex.) : 8 ! = 1 x 2 x 3 x ……x 7 x 8 = 40320.00

8 [ 2ndF ] [ x ! ]  

   

DEG

   

  

40320.00

Unit Conversion 

(Ex.) : 12 in = 30.48 cm 

12 [ A

Æ

B ] [ 2ndF ] [ in 

↔

cm ] 

   

DEG

  

30.48

(Ex.) : 98 cm = 38.58 in