28
Section 2: Numeric Functions
Logarithmic Functions
Natural Logarithm.
Pressing
|Z
calculates the natural logarithm of
the number in the display; that is, the logarithm to the base
e.
Natural Antilogarithm.
Pressing
'
calculates the natural antilogarithm
of the number in the display; that is, raises
e
to the power of that number.
Common Logarithm.
Pressing
|
o
calculates the common
logarithm of the number in the display; that is, the logarithm to the base 10.
Common Antilogarithm.
Pressing
@
calculates the common
antilogarithm of the number in the display; that is, raises 10 to the power of
that number.
Keystrokes
Display
45
|Z
3.8067
Natural log of 45.
3.4012
'
30.0001
Natural antilog of 3.4012.
12.4578
|
o
1.0954
Common log of 12.4578.
3.1354
@
1,365.8405
Common antilog of
3.1354.
Hyperbolic Functions
Given x in the display (X-register):
Pressing
Calculates
´P[
hyperbolic sine of
x
|H[
inverse hyperbolic sine of
x
´P\
hyperbolic cosine of
x
|H\
inverse hyperbolic cosine of
x
´P]
hyperbolic tangent of
x
|H]
inverse hyperbolic tangent of
x
Summary of Contents for HP-15C
Page 1: ...HP 15C Owner s Handbook HP Part Number 00015 90001 Edition 2 4 Sep 2011 ...
Page 17: ...Part l HP 15C Fundamentals ...
Page 64: ......
Page 65: ...Part ll HP 15C Programming ...
Page 118: ...118 ...