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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
.
kEngineering 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, Σx, Σx
2
, o, σn and σn-1, which
you can recall using the key operations noted nearby.
SD REG
SD
To recall this type of value: Perform this key operation:
Σx
2
A U 1
Σx A U 2
n A U 3
o A X 1
σ
n A X 2
σ
n–1 A X 3
(km)
(mg)
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