Flags - HP 32SII Owner's Manual

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Line T09 calculates the correction for X
value of the calculated correction with 0.0001. If the value is less than
0.0001 ("Do If True"), the program executes line T14; if the value is equal to
or greater than 0.0001, the program skips to line T15.

Flags

A flag is an indicator of status. It is either set (true) or clear (false). Testing a
flag is another conditional test that follows the "Do if true" rule: program
execution proceeds directly if the tested flag is set, and skips one line if the
flag is clear.
Meanings of Flags
The HP 32SII has 12 flags, numbered 0 through 11. All flags can be set.,
cleared, and tested from the keyboard or by a program instruction. The
default state of all 12 flags is clear. The three–key memory clearing operation
described in appendix B clears all flags. Flags are not affected by
{ } { }.
Flags 0, 1, 2, 3, and 4 have no preassigned meanings. That is, their
states will mean whatever you define it to mean in a given program. (See
the example below.)
Flag 5, when set, will interrupt a program when an overflow occurs
within the program, displaying
when a result exceeds the largest number that the calculator can handle.
The largest possible number is substituted for the overflow result. If flag 5
is clear, a program with an overflow is not interrupted, though
Flag 6 is automatically set by the calculator any time an overflow occurs
(although you can also set flag 6 yourself). It has no effect, but can be
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24
Tests to see if the correction is significant.
Goes back to start of loop if correction is
significant. Continues if correction is not
significant.
Displays the calculated value of X.
is displayed briefly when the program eventually stops.
Size : 17 .7 x 25.2 cm
. Line T13 compares the absolute
guess
and . An overflow occurs
Programming Techniques 13–9