WP WP-34S - Page 56


Edition 2.2
Page 56 of 103
Name
Keys to press
in modes
Remarks
SL
SL n
Integer
Works like n (up to 63) consecutive SLs on
HP-16C. SL 0 executes as NOP.
SLOW

All

entered for low battery voltage.
SLV
label
DECM
Solves the equation f(x) = 0 , with f(x) calcu-
lated by the routine specified. Two initial esti-
mates of the root must be supplied in X and Y
when calling SLV. For the rest, the user interface
is as in HP-15C. This also means SLV acts as a
test, so the next program step will be skipped if
SLV failed to find a root.
SLVQ

DECM
Solves the quadratic equation
0
2
 cbxax
,
with the real parameters put on the stack
[ c, b, a
 If
04:
2
 acbr
, SLVQ returns
a
rb
2


in Y and X. In a program, the step after
SLVQ will be executed.
 Else, SLVQ returns the real part of the first
complex root in X and its imaginary part in Y
(the 2
nd
root is the conjugate of the first  see
CONJ). If run directly from the keyboard, the
complex indicator is lit then  in a program,
the step after SLVQ is skipped.
In either case, r is returned in Z. Higher stack
levels are kept unchanged. L contains c.
SMODE?

\
Returns the integer sign mode set, i.e.

 complement,

-.
SPEC?

\
True if x is special, i.e. infinity or NaN.
SR
SR n
Integer
Works like n consecutive SRs on HP-16C. SR 0
executes as NOP.
SSIZE4

\
Sets the stack size to 4 or 8 levels, respectively.
See above. The same will happen if stack size is
changed via RCLM.
SSIZE8
SSIZE?

\
Returns the number of stack levels accessible.
STATUS

\PRG
Shows the status of all user flags, similar to
STATUS on HP-16C. See above.