HP 48GII - System Flags

C
System Flags C - 1
9.System Flags
This appendix lists the hp49g+/hp48gII system flags. You can set, clear, and test all flags, although certain flags
are used for specific purposes by the CAS and should not be altered. The default state of the flags is clear —
except for flags –17, –27, –34, –90, –95 and –128 and the Binary Integer Math flags (flags
–5 through –12).
System Flags
Flag Description
–1
Principal Solution.
Clear: Symbolic commands return a result representing all possible solutions.
Set: Symbolic commands return only the principal solution.
–2
Symbolic Constants.
Clear: Symbolic constants (e, i, π, MAXR, and MINR) retain their symbolic form
when evaluated, unless the Numerical Results flag
–3 is set.
Set: Symbolic constants evaluate to numbers, regardless of the state of the
Numerical results flag
–3.
–3
Numerical Results.
Clear: Functions with symbolic arguments, including symbolic constants, evaluate
to symbolic results.
Set: Functions with symbolic arguments, including symbolic constants, evaluate to
numbers.
–4
Not used. (Originally intended to control the careful evaluation mode in the
HP 48SX, without ever being implemented, though).
–5
thru
–10
Binary Integer Wordsize.
Combined states of flag
–5 through –10 (the most significant bit) set the wordsize
from 1 to 64 bits.
–11
and
–12
Binary Integer Base.
HEX (default):
–11 set, –12 set. DEC: –11 clear, –12 clear. OCT: –11 set, –12
clear. BIN:
–11 clear, –12 set.
–13
Not used.
–14
Financial Payment Mode.
Clear: TVM calculations assume end-of-period payments.
Set: TVM calculations assume beginning-of-period payments.
–15
and
–16
Coordinate System.
Rectangular:
–16 clear.
Polar/Cylindrical:
–15 clear, –16 set.
Polar/Spherical:
–15 set, –16 set.
–17
and
–18
Trigonometric Angle Mode.
Radians (default):
–17 set.
Degrees:
–17 clear, –18 clear.
Grads:
–17 clear, –18 set.