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+--- Thread: Challenge: Generate a 64 in the display (RPN) (/thread-15529.html)
RE: Challenge: Generate a 64 in the display (RPN) - Gerson W. Barbosa - 09-03-2020 05:24 PM
\(\pi\) x! x! LN INT x²
RE: Challenge: Generate a 64 in the display (RPN) - grsbanks - 09-03-2020 06:39 PM
In 3 steps if you don't know how to get "@" in the alpha register on a 41C...
Code:
" "
ATOX
ST+ Xor
Code:
"A"
ATOX
DSE XRE: Challenge: Generate a 64 in the display (RPN) - Gene - 09-03-2020 07:13 PM
Keep these coming. Don't throw away your solution if it isn't one of these two or three step ones. Here's one interesting solution (to me)...
7 steps - any RPN with the INT function
DEG
PI
PI
COS
-
ATAN
INT
I suspect that solution was worked backwards!
Gene
RE: Challenge: Generate a 64 in the display (RPN) - Albert Chan - 09-03-2020 07:13 PM
HP-12C, 8 steps, 2^6 = 64
CLX
E^X
ENTER
+
ENTER
1/X
12X
X^Y
RE: Challenge: Generate a 64 in the display (RPN) - DanM - 09-03-2020 07:25 PM
42S
Not very elegant, 7 steps
CL(Sigma)
Sigma+
Sigma+
Enter
Sigma+
Y^X
X^2
RE: Challenge: Generate a 64 in the display (RPN) - Gene - 09-03-2020 09:37 PM
Here is another interesting one.
CLX
GRAD
COS
ENTER
SIN
1/X
+
INT
RE: Challenge: Generate a 64 in the display (RPN) - BruceH - 09-03-2020 09:48 PM
(09-03-2020 07:25 PM)DanM Wrote: Not very elegant, 7 steps
No, that's quite elegant compared to the worst possible solution which is a two-step solution for the HP-50G.
Step 1: reset the calculator!
Step 2: RCWS
:-)
RE: Challenge: Generate a 64 in the display (RPN) - pinkman - 09-03-2020 10:31 PM
(09-03-2020 05:22 PM)Massimo C. Wrote: HP 35s: 4 steps
<-
-> °F
ENTER
+
Not really a « Classic » calc, but I love this solution!
RE: Challenge: Generate a 64 in the display (RPN) - ijabbott - 09-03-2020 10:42 PM
HP-11C: 8 steps
CLx
e^x
ENTER
+
x^2
x^2
LSTx
*
RE: Challenge: Generate a 64 in the display (RPN) - Namir - 09-03-2020 11:00 PM
Anyone care to share their two-step solution?
Mine is:
EEX 64
LOG
Namir
RE: Challenge: Generate a 64 in the display (RPN) - pinkman - 09-03-2020 11:01 PM
My 2 cents in 5 steps (HP42s):
01 PI
02 IP
03 X↑2
04 DSE ST X
05 X↑2
RE: Challenge: Generate a 64 in the display (RPN) - Joe Horn - 09-03-2020 11:07 PM
(09-03-2020 09:48 PM)BruceH Wrote:(09-03-2020 07:25 PM)DanM Wrote: Not very elegant, 7 steps
No, that's quite elegant compared to the worst possible solution which is a two-step solution for the HP-50G.
Step 1: reset the calculator!
Step 2: RCWS
:-)
Here's a fugly solution on the 50g that doesn't require a reset, included here just for laughs:
1. RCLF
2. BYTES
3. SWAP
4. BYTES
5. NIP
6. +
RE: Challenge: Generate a 64 in the display (RPN) - Namir - 09-03-2020 11:08 PM
(09-03-2020 03:19 PM)Valentin Albillo Wrote: 01 "@"
02 ATOX
Good one!
Namir
RE: Challenge: Generate a 64 in the display (RPN) - rprosperi - 09-04-2020 12:15 AM
(09-03-2020 11:00 PM)Namir Wrote: Anyone care to share their two-step solution?
Mine is:
EEX 64
LOG
Namir
This breaks 2 rules - you can't use digits or EEX
Otherwise, nice and short
RE: Challenge: Generate a 64 in the display (RPN) - Gene - 09-04-2020 01:05 AM
(09-03-2020 11:00 PM)Namir Wrote: Anyone care to share their two-step solution?
Mine is:
EEX 64
LOG
Namir
Gene: Have to call foul on this one. Sorry. Original instructions said:
"You may not use any of the digit keys 0 - 9, the EEX key or the decimal point."
:-)
RE: Challenge: Generate a 64 in the display (RPN) - Didier Lachieze - 09-04-2020 01:31 AM
Instead of a short solution targeted to a specific model, here is a simple 10 steps solution that should work on almost any HP RPN calculator starting with the HP-35. It requires only the e^x function which is more widespread than LastX (missing on the HP-35, 70, 80, 21, 22, 37E), or x^2 (missing on the HP-35, 70, 80, 21, 22, 31E, 37E, 38E), :
Code:
CLX
e^x
ENTER
+
ENTER
+
ENTER
ENTER
*
*As far as I know there are only two HP handheld RPN calculators without e^x: the HP-70 and HP-80.
For the HP-70 I don't have a solution, but for the HP-80 you can replace the first two steps above with:
Code:
CLEAR
Sigma+RE: Challenge: Generate a 64 in the display (RPN) - Craig Bladow - 09-04-2020 01:38 AM
On HP-41CX, 4 steps.
Code:
PI
ST+ X
SF IND X
X<>FRE: Challenge: Generate a 64 in the display (RPN) - Gerson W. Barbosa - 09-04-2020 03:10 AM
hp 33s:
ℝ
IP
x²
Not quite a classic RPN machine, I fear.
RE: Challenge: Generate a 64 in the display (RPN) - Gerson W. Barbosa - 09-04-2020 03:15 AM
(09-03-2020 10:31 PM)pinkman Wrote:(09-03-2020 05:22 PM)Massimo C. Wrote: HP 35s: 4 steps
<-
-> °F
ENTER
+
Not really a « Classic » calc, but I love this solution!
This works on the HP-32S II as well.
RE: Challenge: Generate a 64 in the display (RPN) - Didier Lachieze - 09-04-2020 05:49 AM
Yes, this one is cool ! And it works also on the HP-55, 31E, 32E