HP HP-65 - Figure 3-3. Functions of X and Exponential Function (Yx)

Function
Input
Value(s)
Result
Natural
logarithm
(base
e)
Natural
antilogarithm
(ex)
Common
logarithm
(base
10)
Common
antilogarithm
(10%)
Square
root
(\/X)
Square
(x?)
Reciprocal
(1/x)
Integer
factorial
(n!)
nl=1:2:3+...«(n—1)*n
0l=1
Exponential
(yx)
X
not
zero
or
less
(x>0)
Unrestricted
x
X
not
zero
or
less
(x>0)
Unrestricted
x
Non
negative
x
(x>0)
Unrestricted
x
Non
zero
x
(x=40)
Non
negative
integer
nin
x
(x>0;
x
an
integer)
Positive
y
and
unrestricted
X
(y>0)
In
(x)
in
X
exin
X
log
(x) in
X
10%in
X
VXin
X
x2in
X
1/xin
X
n!in
X
y*in
X;
stack
drops.
Figure
3-3.
Functions
of
x
and
the
Exponential
Function
(y*)