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
PROG1
,
PROG2
.
* [ 2nd ] [ CL-PROG ] clears the contents of
PROG1
,
PROG2
.
(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.