Citizen SRP-280N/SRP-285N Benutzerhandbuch

Seite von 247
 
E – 7 
File name : CBM_SR285,A_HDBSR285T19_English.doc 
 
 
version : 2010/04/26 
z
 
The calculator has ten memory variables for repeated use : A, B, 
C, X, Y, M, X1, X2, PROG1
 and PROG2. You can store a real 
number in variables A, B, C, X, Y, M, X1, X2 and an expression in 
PROG1 and PROG2.  See Example 5. 
*  [ P/V RCL ] recalls all variables. 
*  [ SAVE ] lets you store values to variables. 
*  [ 2nd ] [ RECALL ] recalls the value of variable. 
*  [ 2nd ] [ CL-VAR ] clears all variables except PROG1PROG2
*  [ 2nd ] [ CL-PROG ] clears the contents of PROG1PROG2
(Note) :  Besides pressing [ SAVE ] key to store a value, you can 
also assign values to memory variable M by [ M+ ] or 
[ 2nd ] [ M– ]. However, anything currently stored in 
variable  M will be deleted and replaced by the newly 
assigned value. 
„ 
Order Of Operations
 
Each calculation is performed in the following order of precedence : 
1)  Expression inside parentheses. 
2)  Coordinates transformation, and Type B functions which are 
required pressing the function key before entering, for example, 
sin, cos, tan, sin 
–1
, cos 
–1
, tan 
–1
, sinh, cosh, tanh, sinh 
–1
cosh 
–1
, tanh 
–1
, log, ln, 10 
X
, e 
X
,  √, NEG, NOT, X'( ), Y'( ) 
3)  Type A functions which are required entering values before 
pressing the function key, for example, x 
2
, ! , x
–1
, %, r, 
g.  
4)  Exponentiation ( ^ ), 
X
 
5) Fractions 
6)  Abbreviated multiplication format in front of variables, π , 
RANDM, RANDMI. 
7)  ( – ) 
8)  Abbreviated multiplication format in the front of Type B 
functions, 2
3
, Alog2, etc. 
9) nPr, 
nCr 
10) x ,  
11) +, – 
12) AND, NAND 
13)  OR, XOR, XNOR 
14) Conversion( a 
b
/
c
d
/
e
, F
D,  DMS ) 
• When functions with the same priority are used in series, 
execution is performed from right to left. 
          e 
X
 ln120 Æ e 
X
 { ln (120 ) } 
otherwise, execution is from left to right.