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#3276 Re: Exercises » Is this cool with you? » 2010-03-07 18:09:43
Yes, that was nasty...especially so soon after the other one as I was still stuck in that thinking mode.
I was unable to spot the logic that I knew had to be the key to the solution and so I peeked at mathsyperson's great answer. Until then I could only offer feeble response.
#3277 Re: Exercises » Is this cool with you? » 2010-03-07 11:51:21
Yes, the total time spent on my BASIC code was only a minute or two because of its simplicity.
The main reason I wrote it (I'd opted for spreadsheet initially to help analyse the results...and because I enjoy using Excel) was that I couldn't work out how FreeMat's debugger worked, and I wanted to see what your program was doing. BASIC's debugger revealed that very quickly...although, thinking about it more, I should have been able to understand it without turning to the debugger for help.
Learning all the time... 
#3278 Re: Exercises » Is this cool with you? » 2010-03-07 04:11:14
And I like what you've done, mathsyperson! Clever, efficient, with good insight and understanding that I lack. I puzzled over the fourth line but eventually saw what you did. Nice!
I don't know computing software such as MATLAB, but I wanted to see what your code did and installed FreeMat...where it ran fine. I converted your code to , with this result: 0 milliseconds, compared with my 220ms if I don't print the list...only the total count.
I also like using a spreadsheet for something like this, just for ease of analysing the result list and to play around some more with the figures.
#3279 Re: Exercises » Is this cool with you? » 2010-03-06 20:47:37
my code for the answer in BASIC.
How did you do it, Bobby?
#3280 Re: Exercises » Is this cool with you? » 2010-03-06 14:29:30
Hi Bobby,
I didn't analyse the answers...I just did .
#3281 Re: Exercises » Is this cool with you? » 2010-03-06 10:57:28
Hi Bobby,
I get integers.
#3282 Re: Puzzles and Games » Add 13 more and post it forever. » 2010-03-04 11:00:24
Hi Bobby,
1457? Is that another roundoff error, one that rounds (way) up?
Thanks for that code, btw. Tiny! Not sure if I'll be able to make sense of it.
1469
#3283 Re: Puzzles and Games » Add 13 more and post it forever. » 2010-03-04 02:44:15
Hi Bobby,
Sorry, but your answer is incorrect...it should only come from the digits 1 to 7.
You said on that other site that you use Mathematica for these. Could you post your Mathematica code of this puzzle for me to learn from? Thanks.
I used BASIC to help me construct the puzzle.
New number: 1443.
#3284 Re: Puzzles and Games » Add 13 more and post it forever. » 2010-03-03 22:14:39
ONE + FOUR - ZERO + FOUR = 1404
Each letter in the puzzle stands for a different digit from 1 to 7. Find the letter values.
Hi Bobby,
What's the significance of the ".000001" after "1378"?
#3285 Re: Puzzles and Games » Add 13 more and post it forever. » 2010-03-01 11:45:38
1339.
The difference between the first and second pairs of digits of the difference between 1339 and its reverse is 13.
(9331 - 1339 = 7992, and 92 - 79 = 13)
#3286 Re: Puzzles and Games » Add 13 more and post it forever. » 2010-03-01 11:13:21
1313.
Lucky I'm not triskaidekaphobic.
#3287 Re: Guestbook » How old are you bobbym? » 2010-03-01 10:45:32
This entire conversation switched gears within two day? I need to get on here more often...
If you haven't set this option already, misheeru...you can be notified by email when there's a new post in a particular thread by clicking the "Subscribe to this topic" link near the bottom of any page on that thread.
#3288 Re: Puzzles and Games » Dstar Puzzle » 2010-03-01 10:12:57
If my arrow key is down when I complete a round, then the guy moves on the next round. My keyboard delay setting is slow, but the repeat rate is fast.
I had the same problem initially and for my posts in the other thread couldn't produce the videos and the final "Well done" picture to show the lowest scores that I'd got because of that problem.
Changing the "Repeat delay" keyboard setting to its longest fixed it. I kept "Repeat rate" at its fastest and "Cursor blink rate" at one click off fastest, and also made sure of it working by giving the last key-press on the two levels where it affected the outcome a lightning-fast peck.
#3289 Re: Guestbook » How old are you bobbym? » 2010-03-01 09:59:46
Remember in bobbym the b stands for brains and the m stands for mighty.
And the "o" and the second "b" stand for "obliteration bomb"; and the "y" and the third "b" stand for "y-bomb".
#3290 Re: Guestbook » How old are you bobbym? » 2010-02-28 14:46:52
On second thought I may have to use you as a bullet shield so don't leave just yet.
If you get given a choice with the anticipated hail of bullets, ask for 'Chocolate Hail'...to which I'm very partial!
#3291 Re: Guestbook » How old are you bobbym? » 2010-02-28 13:46:46
You shouldn't have gotten into this.
I'm young enough not to know better...but I couldn't resist. I'll desist.
#3292 Re: Exercises » What do you think? » 2010-02-28 12:30:42
Hi Bobby,
TEN + TEN + NINE + EIGHT + THREE = FORTY
Are there multiple solutions to this? I get 7
EDIT: I included my code (LibertyBASIC)
#3293 Re: Puzzles and Games » d-star » 2010-02-27 05:21:04
Hi Jane,
I've taken our tumbling-results record from where it was hiding way back in post #13 and placed it here. It may get overrun again, but probably less so.
Included are my fewest-moves solutions (text and video).
You Me
Level 1 12 → 11 12 → Video
Level 2 53 → 48 53 → Video
Level 3 27 → 23 23 → Video
Level 4 39 → 31 31 → Video
Level 5 44 → 40 51 → Video
Level 6 44 71 → Video
Level 7 19 19 → Video
Level 8 41 → 26 57 → Video
Level 9 47 → 41 42 → Video
Level 10 62 → 57 76 → Video
388 → 340 435 → 328
#3294 Re: Puzzles and Games » d-star » 2010-02-26 15:23:18
Lowered some more scores:
L5 down to 40 - I'd previously started working towards the right, but after exhausting all possibilities and still not getting down to your 40 I switched tack and went left...and there it was.
L2 down to 47 - eliminated a superfluous move I'd been overlooking.
L6 down to 47 - spotted a good move I'd missed, to save 5.
L7 down to 18 - I'd been making a silly extra move.
EDIT #1: L6 down to 46...getting there!
EDIT #2: L6 down to 44 I wonder if it can be bettered...seems open, and there may be other possibilities.
EDIT #3: L9 down to 41.
Total now 338.
This has taken over my life! I might even go to bed one day after I think I can't do any better! <yawn> 
#3295 Re: Guestbook » How old are you bobbym? » 2010-02-26 14:07:41
My YOB can be found by solving this little puzzle.
Once you've worked that out all that's left for you to do is to find out if that is actually my YOB.
#3296 Re: Puzzles and Games » d-star » 2010-02-26 04:30:00
My L10 score was wrong...should be 57, not 56. Total now 352. 
EDIT: Have since reduced L5 to 41...new total 350.
#3297 Re: Puzzles and Games » d-star » 2010-02-25 06:48:09
I've got a full-time job in writing up the scoreboard!
Funny...I'd thought that my initial 435 total would be hard to beat!
I've tried to get down to your L5's 40, but can't manage it yet.
Btw, Jane, do you have a way of saving levels to avoid having to start again when you run out of credits?
#3298 Re: Puzzles and Games » d-star » 2010-02-25 05:07:12
Took 31 off L8 and 20 off L10...down to 351.
I looked at L7 & L9 and couldn't better their scores. Still upset over not being able to reduce L6 further! <sniff>
#3299 Re: Puzzles and Games » d-star » 2010-02-25 04:01:50
You probably spotted the same move for L1 as I did today...and, like you, I also thought 12 was its minimum.
I shaved another 11 from my total, so am down to 402 now. Unsuccessful with reducing L6 and can't work out how you did it, but am persisting. I'll probably try L8 & L10 next, although after reducing L1 & L2 - which I thought couldn't be bettered - I feel encouraged to revise the other levels too.
#3300 Re: Exercises » What do you think? » 2010-02-24 21:13:21
It happened for these three:
13.33333333333333333333^4*16.66666666666666666666^5*20^6
13.333333333333333333333333333333^4*16.666666666666666666666666666666^5*20^6
13.3333333333333333333333333333333333333333333333333333333333333333333333333333333333333
3333333^4*16.666666666666666666666666666666666666666666666666666666666666666666666666666
66666666666666666^5*20^6
I was checking the results against those of my calculator.
I notice now that the error only occurs at the last click of the "More digits" button.
EDIT: Looks like that long third entry wrecked the page layout and the word wrap doesn't wrap. I've split it into 3 lines.