WP 34S Owner‘s Manual
Edition 2.2
Page 43 of 103
Name
Keys to press
in modes Remarks
ISG
r
PRG
Given
cccccc.fffii
in
r
, this function in-
crements
r
by
ii
, skipping next program line if
then
ccccccc
>
fff
.
If
r
features no fractional
part then
ii
is set to 1.
Note that neither
fff
nor
ii
can be negative,
but
cccccc
can.
ISZ
ISZ
r
PRG
Increments
r
by one, skipping next program line
if then
1
r
.
Known from the
HP-16C
.
I
β
…
DECM
Returns the regularized incomplete beta function
x
z
y
x
dt
t
t
z
y
z
y
z
y
x
0
1
1
1
,
1
,
,
,
with
x
being the incomplete beta function and
being Euler‘s beta (see below).
I
Γ
…
DECM
Returns the regularized incomplete gamma func-
tion
x
y
x
,
with
y
t
x
dt
e
t
y
x
0
1
,
being the
lower incomplete gamma function. For
see be-
low.
J - L
JG1582
…
DECM
These two commands reflect different dates the
Gregorian calendar was introduced in different
large areas of the world. D
J and J
D will be
calculated accordingly.
JG1752
J
D
…
DECM
Takes
x
as a Julian day number and converts it
to a date according to JG... in the format se-
lected
KEY?
KEY?
a
All
Tests if a key was pressed while a program was
running or paused. If no key was pressed, the
next program step after KEY? will be executed,
else it will be skipped and the code of said key
will be found in address
a
. Key codes start top
left and correspond to the rows and columns on
the keyboard
– so e.g.
corresponds to 11,
to 16,
to 21, and
to 75.
