E-25
•
Example 2:
To convert rectangular coordinates (1, 3) to polar
coordinates (
r
,
) (Angle unit: Rad)
r
2
A
f
1
P
L
3
T
<
θ
1.047197551
0
y
• Press
0
x
to display the value of
r
, or
0
y
to display the value of
.
k
Engineering Notation Calculations
•
Example 1:
To convert 56,088 meters to kilometers
→
56.088
10
3
56088
<
J
•
Example 2:
To convert 0.08125 grams to milligrams
→
81.25
10
–3
0.08125
<
J
Statistical Calculations
Standard Deviation
Use the
F
key to enter the SD Mode when you want to perform
statistical calculations using standard deviation.
SD ...........................................................................................
F
F
1
• Always start data input with
A
B
1
(Scl)
<
to clear statistical memory.
• Input data using the key sequence shown below.
<
x
-data>
S
• Input data is used to calculate values for
n
,
Σ
x
,
Σ
x
2
,
o
,
σ
n
and
σ
n
-
1
, which
you can recall using the key operations noted nearby.
SD
REG
SD
To recall this type of value:
Perform this key operation:
Σ
x
2
A
U
1
Σ
x
A
U
2
n
A
U
3
o
A
X
1
σ
n
A
X
2
σ
n
–1
A
X
3
(km)
(mg)
