Silan
Semiconductors
SC3445
(12).
n!
CE
1: Clear entry key
2: Factorial key
• Used to correct a mistaken numerical entry.
(Example) 1 . 2 3 CE
→
0.
1.24
• Used to perform factorial calculations.
(Example) 5 2ndF n!
→ 1.24
→ 120.
(13).
xY
yx
1: Power key
2: Root key
• Used to raise Y to the x power.
(Example) 24 → 2 YX 4
= → 16.
• Used to take the X root of Y.
(Example)
4 16 → 16 2ndF x Y 4 = →
2.
(14).
ex
Ln
1: Natural logarithm key
2: Exponential key
• Used to calculate logarithms to the base e (≈2.718281828).
(Example) Ln 2 → 2 Ln
→ 0.693147181
• Used to raise e to a given power.
(Example) e4 → 4 2ndF ex
→ 54.59815003
(15).
10x
log
1: Common logarithm key
2: Common anti-logarithm key
•. Used to calculate logarithms to the base 10.
(Example) Log 2 → 2 Log
→ 0.301029996
• Used to calculate the anti-logarithm in base 10
(Example)
101.2 → 1.2 2ndF 10x
→ 15.84893193
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2001.06.11
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