Calculations with parenthesis, Coordinate conversion – CITIZEN SR-135NPU User Manual
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[1] [4] [7] [0] [M+]
[MR]
4. Calculations with parenthesis.
Parenthesis are used when it is desired to perform calculations in a
first priority that usually followed for the +, –, x,
÷
, x
y
,
y
x , operations.
In other words the “(” “)” force those prior operations it to be pending
until the calculation inside the parenthesis are performed.
Parenthesis may be used in a chained calculation as long as the total
of levels ending due to the automatic priority Logic and parenthesis
does not exceed 15.
Example: 6+ [(5–3.6+5)x0.8–6] x3.2 =
Key
Input
Display
[6] [+] [ ( ] [ ( ]
[5] [–] [3] [ • ] [6] [+] [5] [ ) ]
[x] [ • ] [8] [–] [6] [ ) ]
[x] [3] [ • ] [2] [=]
5. Coordinate conversion:
(1) polar → rectangular
Example:
Key Input
Display
[2] [a]
[60] [b]
[SHIFT] [P→R]
y
x
[b]
M
1470.
M
6240.
0.
6.4
–
0.88
3.184
2.
60.
1.
1.732050808