HP-35’s CHS behavior

[Thomas Okken]

(08-16-2019 09:09 PM)teenix Wrote:  On the later HP 67...

Press...
3
3
CHS
Enter

X = -33
Y = -33
Z = 0
T = 0

Press...
CHS

X = 33
Y = -33
Z = 0
T = 0

Press...
4

X = 4 <- this behaviour was more correct
Y = -33
Z = 0
T = 0

That's not quite correct. On the HP-67, CHS enables stack lift, so that final stack diagram should be

Quote:X = 4
Y = 33
Z = -33
T = 0