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#101 Re: Dark Discussions at Cafe Infinity » icelandic dictionary » 2014-02-22 10:56:50
viðskipti = commerce, dealings
særa = hurt ones feelings
koddi = pillow
morgunkaffi = breakfast
fugl = bird
stjórna = govern
tefla = play chess
óætur = uneatable
samband = connection
kvæði = poem, song
rjómi = cream
næra = nourish
kitla = tickle
mjólk = milk
#102 Re: Dark Discussions at Cafe Infinity » icelandic dictionary » 2014-02-22 09:53:34
On that note, maybe I should get an icelandic CD to listen to.
By the way, I'm Swedish and Finnish. My relatives claim to be
Swedish, but they lived on an island owned by Finland.
Later they moved to Vaasa, Finland before coming to the US.
#103 Re: Dark Discussions at Cafe Infinity » icelandic dictionary » 2014-02-22 08:50:07
hjón = married couple
muna = remember
stolt = pride
#104 Dark Discussions at Cafe Infinity » icelandic dictionary » 2014-02-22 08:31:30
- John E. Franklin
- Replies: 20
I picked up a nice little icelandic dictionary at the Homestead bookshop in Marlborough, New Hampshire for $2.00.
I'm really psyched the way the words seem so cleverly crafted that their sounds when sounded out as an American,
the words seem to come to life and really show their meaning by the sound. It's quite astounding. I've been
reading many foreign language dictionaries in the last decade and this one really found my heart.
Oh, remember when Daniel Tammet learned Icelandic in one week as a contest? He also
recited pi to 22,513 digits...
But I think I'll post my "fav" words I find the dictionary here once in a while and any
icelandish topic at all is welcome in this thread, or even Atlantic Ocean topics of the north...
#105 Re: Maths Is Fun - Suggestions and Comments » Other subjects » 2014-02-22 08:21:35
Wow, that's hilarious!
#106 Re: Puzzles and Games » Add 13 more and post it forever. » 2014-02-22 08:13:15
25688
98-91=7 78/13 = 6
#107 Re: Puzzles and Games » Add 14 more and post it forever » 2014-02-22 08:08:15
1022 = 14 x 73
#108 Re: Dark Discussions at Cafe Infinity » Star Member » 2014-02-22 06:16:19
saela!!! (icelandic)
#109 Re: Dark Discussions at Cafe Infinity » Moon sightings » 2014-02-22 05:58:58
At 9am this morning (4 hours ago exactly) I saw the moon about 1/3 lit-up on the left, so waning (viewed from 43 degrees north).
The sun was up and the moon was heading down.
#110 Dark Discussions at Cafe Infinity » Weeks of the Seasons » 2014-02-20 11:20:49
- John E. Franklin
- Replies: 3
I designed a barbaric calendar that I use to keep track of everything I do and my appointments.
Below are 12 special dates that I use every year over and over. It's close enough for me.
Winter
3rd Week: Jan 5th
7th Week: Feb 2nd
11th Week: March 2nd
Spring
3rd Week: April 6th
7th Week: May 4th
11th Week: June 1st
Summer
3rd Week: July 6th
7th Week: Aug 3rd
11th Week: September 1st
Autumn (Fall)
3rd Week: October 6th
7th Week: November 3rd
11th Week: December 1st
Extracting the 12 numbers above, being Sundays and Mondays in 2014, you get the data stream "522 641 631 631".
The 10th Week of Winter will be 8 days on leap years, and so the day changes that subsequent dates fall on in the chart.
The 10th Week of Summer will be 8 days long too, every year though in this barbaric chart, and the day jumps ahead there too.
Each year the same "522 641 631 631" can be used, every year over and over again, except that the name of the day of the
week changes after the 10th Week of Summer, and then every 4 years after the 10th week of Winter too.
That's my calendar I keep in my head.
So this year I'm thinking all those dates will be Sundays until September 1st, when I switch to Mondays.
In 2015, I will still be on Mondays all year until Sept 1st, and then I'll be on Tuesdays.
In 2016 (16mod4=0=leapyear), Tuesday is Jan5th and Feb2nd, on March 2nd, I switch to Wednesdays until September 1st and
then go to Thursdays.
I stay at Thursdays through the end of 2016 and all the way thru most of 2017 until Sept 1st again, and then I go to Fridays.
In 2018, I stay with Fridays until Sept 1st, and I go to Saturdays.
(I didn't check these days out, so I hope their right)
#111 Re: Help Me ! » Torpedos II » 2014-02-20 06:54:30
Thanks again.
I got the same 49/54 by hand.
196 out of 216, but I only luckily wrote down 27 of them and knew the rest were sunk, and 20 floated out of 216.
If I think up something else, I'll ask at another time. 
#112 Re: Help Me ! » Torpedos II » 2014-02-20 06:14:08
So is "maple"free or open source?
#113 Re: Help Me ! » Torpedos II » 2014-02-20 05:54:44
thank you, I will try first to work out my answer with the 6x's cases way where;
1/2 = 3, 1/6 = 1, and 1/3 = 2. That should get me an answer later today...
#114 Help Me ! » Torpedos II » 2014-02-20 05:36:47
- John E. Franklin
- Replies: 7
Suppose that each torpedo has a 1/2 probability of sinking a ship, 1/6 probability of damaging it and 1/3 of missing it altogether. Moreover, 2 damaging shots will also sink the ship. What is The probability that firing three torpedoes will sink the ship ?
#115 Re: Help Me ! » Torpedos » 2014-02-20 05:14:03
I knew you would probably suggest I analyze the incorrect answer with 45 rows and see if I missed 36 rows and so I did that and
now I have three more rows to add to my original 12 row way and I'm working on expanding that...
Yup, I found the 12 x 3 = 36 missing rows in my first approach. Now I'm getting 81 again for the number of ways the shots can be fired, basically 3 x 3 x 3 x 3.
Wow, if this problem hadn't been 1/3 exactly for the probabilities, then I would have to learn some of your other methods.
So I will pose another problem in another thread I guess, if you approve that might get me to learn this better.
I'll wait a few minutes to see if you think we should just continue in this one though first...
#116 Re: Help Me ! » Torpedos » 2014-02-20 05:07:26
Hey, I was wondering. What do you think would be a good way to proceed with this story of the torpedos.
Because I think I would like to learn more about this now that I also am getting 5/81 float, but more than
that fact is that when I got 45 rows, it was a haphazard approach, so I am very interested in not making the
same mistake again down the road, unless ofcourse someone brings me to my senses again.
#117 Re: Puzzles and Games » Add 99 more and post it forever. » 2014-02-20 04:57:32
128700 = 13 x 100 x 99
Wow I thought I was setup for this easy one, but hey, the #1300th post so cool I guess.
#118 Re: Help Me ! » Torpedos » 2014-02-20 04:54:20
Okay, I got a 27 row list expandable to 81 by changing the last column from 0, 1 or 2.
And 0=miss, and 1=damage, and 2=sunk.
It became quite clear that providing these 81 combinations were all 1/81 of the time, then I could just count the rows
with 0 or 1 totals for the unsinking rows.
Doing this, I get:
0000, 0001, 0010, 0100, 1000, which is five rows.
So unsinking could be 5/81 and (81-5)/81 or 76/81 could be the sinkable probability.
Um.
So
miss-miss-miss-miss
miss-miss-miss-damage
miss-miss-damage-miss
miss-damage-miss-miss
damage-miss-miss-miss
equals five ways out
of 81.
So I guess at this point
I wish I knew all those
other amazing methods,
but I have years to learn
these things if I can or
have the time and skill
and determination.
#119 Re: Help Me ! » Torpedos » 2014-02-20 04:17:38
thank you. I am starting to see that my answer may be flawful in that the 12 rows I haven't even told you of, are actually expandable to more rows and some rows I think will have more expansions than other rows, so I will have to redo my work, or at least continue it... Thanks for getting me to think more.
I still think I'm doing it the wrong way, but will try another way soon.
Now I'm getting 45 rows and 40 are sinkable, giving 8/9 sink, but I think I'll keep trying until I get your number or until I am convinced of something else like hotdogs that postpone this...
#120 Re: Puzzles and Games » Add 24 more and post it forever » 2014-02-20 03:48:16
2904 = 24 x 121 = 24 x 11**2
2928 = 24 x 122 = 24 x 61 x 2
2952 = 24 x 123 = 24 x 3 x 41
#121 Re: Help Me ! » Torpedos » 2014-02-20 03:42:48
What I mean is, are you treating the problem like a child, or are you stipulating other criteria, like you can't have 3 damages because 2 sinks it?
#122 Re: Help Me ! » Torpedos » 2014-02-20 03:35:33
No, I mean, I am getting a simpler answer and wondered if it had to do with that a ship can't sink 4 times at once???
I just set up a table like a truth table with values 0 to 4 in 3 columns like a child might do and I get 5/6th with 12 rows or
10/12 sinking.
#123 Re: Help Me ! » Torpedos » 2014-02-20 03:25:45
How come you can't hit the ship 4 times in a row under water, or 2 hits and 2 damages?
#124 Re: Puzzles and Games » Add 24 more and post it forever » 2014-02-18 11:15:02
2784 = 24 x 116 = 24 x 2 x 58 = 24 x 2 x 29
2808 = 24 x 117 = 24 x 9 x 13
2832 = 24 x 118 = 24 x 2 x 59
2856 = 24 x 119 = 24 x 17 x 7
2880 = 24 x 120 = 1440 x 2
#125 Re: Help Me ! » decimal to fraction » 2014-02-18 10:56:51
Today I did another one in base-4 by hand.
Here it is:
The long hand division revealed this quotient with a repeating decimal of length 9:
From this I am guessing that 4^9 - 1 is divisible by 19, and wolfram alpha says "yes".
The same fraction is base-10 can be done with wolfram: 13/19 and
then you get a repeating part 18 long instead of 9 in base-4.
And 10^18 - 1 is also divisible by 19, the denominator, says wolfram alpha.
So this is pretty neat, if it always works, I'm not sure.
Anyone know if this always works in all bases or always in base-10??