Hello, try this, I think it is a bug, but not(?!?!?) important - maybe annoying:

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CASE 1:

Type the following equations into the calc:

A+B=C (eq1)

D+E=C (eq2)Press [ON] to exit EQN mode

Press [ON]+[C] to soft-resetting calculator (try without it - I used, for safety)

Press [CLVARS] to clear variables

Go to EQN list, and search (eq1)

Press [SOLVE] C

On A?0 prompt type 2 [R/S]

On B?0 prompt press [ON] to cancel SOLVE

Go to EQN list, and search (eq2)

Press [ENTER]

On D?0 prompt type 3 [R/S]

On E?0 prompt type 7 [R/S]The EQN anunciator will flashing and on the screen seems

C?0 or C?1, and you will get C=10.===========================================================

CASE 2/a:

Type the following equations into the calc:

A+B=C (eq1)

D+E=F (eq2) <-- CHANGE IS HERE!!!Press [ON] to exit EQN mode

Press [ON]+[C] to soft-resetting calculator (try without it - I used, for safety)

Press [CLVARS] to clear variables

Go to EQN list, and search (eq1)

Press [SOLVE] C

On A?0 prompt type 2 [R/S]

On B?0 prompt press [ON] to cancel SOLVE

Go to EQN list, and search (eq2)

Press [ENTER]

On D?0 prompt type 3 [R/S]

On E?0 prompt type 7 [R/S]

On F?0 prompt type 10 [R/S]You will get C=1 or C=0.

(If you after CLVARS deleted the stack, you will get always C=1.)===========================================================

CASE 2/b:

Type the following equations into the calc:

A+B=C (eq1)

D+E=F (eq2)Press [ON] to exit EQN mode

Press [ON]+[C] to soft-resetting calculator (try without it - I used, for safety)

Press [CLVARS] to clear variables

Go to EQN list, and search (eq1)

Press [SOLVE] C

On A?0 prompt type 2 [R/S]

On B?0 prompt press [ON] to cancel SOLVE

Go to EQN list, and search (eq2)

Press [ENTER]

On D?0 prompt type 3 [R/S]

On E?0 prompt type 7 [R/S]

On F?0 prompt type 11 [R/S] <-- CHANGE IS HERE!!!The EQN anunciator will flashing, and you will get NO ROOT FND error.

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For a good reproduction try this with empty stack

(clear the stack after CLVARS).

Any comments??? HP33S users can it to reproduce???

Csaba

*Edited: 15 July 2004, 7:06 a.m. *