Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 Re: Dark Discussions at Cafe Infinity » n.korea said it wasn.t them. » Today 01:16:03

poitquoi ?
je suis deux annees agé.
why are you making me say these things?
why are you making me say these things?

#2 Re: Puzzles and Games » a new bowling alley. » Yesterday 12:02:08

this time the Boston team goes first. somehow the one, five, n thirteen pins fall.
do we still call it a spread eagle?

#3 Re: Dark Discussions at Cafe Infinity » n.korea said it wasn.t them. » Yesterday 11:34:08

ouïe .  hearing.
ouïe = hearing
desolé. non lettre L sound.
say it:  we
huile was a joke plaisanterie.

#4 Puzzles and Games » a new bowling alley. » Yesterday 08:36:08

John E. Franklin
Replies: 1

a new bowling alley opens up with fifteen pins in a pascal.
mobs of people are enjoying themselves with the extra five pins.
geeks are even confused by the Worcestershire.left calling conventions.  one lanky fella said. its a skewed go board.
.....to be continued.....

#5 Re: Dark Discussions at Cafe Infinity » n.korea said it wasn.t them. » Yesterday 07:13:09

peut~etre cellular besoins rebondi sur la verglas murs.

#6 Re: Dark Discussions at Cafe Infinity » n.korea said it wasn.t them. » Yesterday 06:49:08

je suis pensant icefort.wad
brun
gris
vert
rouge
quatre jouers
deux contre deux

#7 Re: Dark Discussions at Cafe Infinity » n.korea said it wasn.t them. » Yesterday 06:16:51

oreilles entends = wheel. lol.... 
comme une lettre"o" roulette.

#8 Re: Dark Discussions at Cafe Infinity » n.korea said it wasn.t them. » Yesterday 05:37:04

oui.  je lis le huile code.(hearing symbology)
lol smile
je ne puis pas connais ma patrie parceque je suis une mélange.

#10 Puzzles and Games » smurf » Yesterday 03:07:50

John E. Franklin
Replies: 0

if a smurf is three apples tall.
and apple seeds have the notorious
33 proton element.  does this mean
that smurfs don.t wear socks?

#12 Re: Dark Discussions at Cafe Infinity » n.korea said it wasn.t them. » 2014-12-20 07:04:02

j essais devien plus bilingue.
j aime le langue français beaucoup!

#13 Dark Discussions at Cafe Infinity » n.korea said it wasn.t them. » 2014-12-19 13:31:57

John E. Franklin
Replies: 17

I read that n.korea
said it wasn.t them.
the usa news even
shows an air pic where
kids learned
computers.

I think Dennis Kucinich
is more peaceful
than Barack O.

le français parais calme.
j essais apprendre plus français.

#14 Re: Dark Discussions at Cafe Infinity » Purpose of life???? » 2014-12-16 07:36:05

ask a clam about life.  clams are animals without a central processor.

#15 Re: Help Me ! » difference of zero, circle and alphabet O » 2014-12-16 05:59:01

hi pari.alf
a zero and a seven
have been drawn with
an extra crossing line
on the character.

I use dots on ones and zeros
in my personal notes.  I put the
dot on the center of the one or zero.

#16 Re: Help Me ! » Combinatorics - How many unique ways to put marbles on vertices » 2014-08-26 10:20:40

the dot product div length product = cosine(angle) in 3d.  angles between edges of cube from center are 60 degrees to closest edge.  because of the hex ring on an angle,  multiples of 60 are also there.

#17 Re: Help Me ! » Combinatorics - How many unique ways to put marbles on vertices » 2014-08-19 11:22:12

REM Start of BASIC! Program

dim maxesindexup1[4097]
xx=0

gosub zeroarraylbl3

for jqa=0 to 1
for jqb=0 to 1
for jqc=0 to 1
for jqd=0 to 1
for jqe=0 to 1
for jqf=0 to 1
for jqg=0 to 1
for jqh=0 to 1
for jqi=0 to 1
for jqj=0 to 1
for jqk=0 to 1
for jql=0 to 1
print "new shape computation"
jqvalmax=0
jqval=0
gosub incxxlbl1

gosub tmpvarlbl2
gosub getvaluelbl4
gosub replacemaxlbl6

gosub zquarteryyyylbl11
gosub zquarteryyyylbl11
gosub zquarteryyyylbl11
gosub zquarteryyyylbl11

gosub xquarteryyyylbl12
gosub xquarteryyyylbl12
gosub xquarteryyyylbl12
gosub xquarteryyyylbl12


gosub lefttorightlbl5
gosub getvaluelbl4
gosub replacemaxlbl6


gosub zquarteryyyylbl11
gosub zquarteryyyylbl11
gosub zquarteryyyylbl11
gosub zquarteryyyylbl11

gosub xquarteryyyylbl12
gosub xquarteryyyylbl12
gosub xquarteryyyylbl12
gosub xquarteryyyylbl12


maxesindexup1[1+jqvalmax]=77


next jql
next jqk
next jqj
next jqi
next jqh
next jqg
next jqf
next jqe
next jqd
next jqc
next jqb
next jqa

! print xx


gosub countmaxeslbl7


end


incxxlbl1:
xx=xx+1
return

tmpvarlbl2:
aa=jqa
bb=jqb
cc=jqc
dd=jqd
ee=jqe
ff=jqf
gg=jqg
hh=jqh
ii=jqi
jj=jqj
kk=jqk
ll=jql
return

zeroarraylbl3:
for jqlbl3 = 1 to 4096
maxesindexup1[jqlbl3]=0
next jqlbl3
return

getvaluelbl4:

jqval=aa
jqval=jqval+jqval
jqval=jqval+bb
jqval=jqval+jqval
jqval=jqval+cc
jqval=jqval+jqval
jqval=jqval+dd
jqval=jqval+jqval
jqval=jqval+ee
jqval=jqval+jqval
jqval=jqval+ff
jqval=jqval+jqval
jqval=jqval+gg
jqval=jqval+jqval
jqval=jqval+hh
jqval=jqval+jqval
jqval=jqval+ii
jqval=jqval+jqval
jqval=jqval+jj
jqval=jqval+jqval
jqval=jqval+kk
jqval=jqval+jqval
jqval=jqval+ll


! print jqval

return



lefttorightlbl5:
aa=jqa
dd=jqb
cc=jqc
bb=jqd
ff=jqe
ee=jqf
hh=jqg
gg=jqh
ii=jqi
ll=jqj
kk=jqk
jj=jql
return


replacemaxlbl6:

if (jqval > jqvalmax ) then

jqvalmax = jqval

print jqvalmax

endif

return




countmaxeslbl7:
jqshapecount=0

for xxlbl7=1 to 4096

if (77= maxesindexup1[xxlbl7]) then
jqshapecount=jqshapecount+1
endif

next xxlbl7
print "shape count"
print jqshapecount
print "**********"

return

turnonzaxislbl8:

ccc=cc
aaa=aa
bbb=bb

cc=hh
aa=ee
bb=dd

hh=kk
ee=ii
dd=ll

kk=gg
ii=ff
ll=jj

gg=ccc
ff=aaa
jj=bbb

return


turnonyaxislbl9:

aaa=aa
eee=ee
iii=ii

aa=dd
dd=cc
cc=bb
bb=aaa

ee=hh
hh=gg
gg=ff
ff=eee

ii=ll
ll=kk
kk=jj
jj=iii

return





computelbl10:

gosub getvaluelbl4
gosub replacemaxlbl6

return


zquarteryyyylbl11:

gosub turnonzaxislbl8
gosub computelbl10
gosub turnonyaxislbl9
gosub computelbl10
gosub turnonyaxislbl9
gosub computelbl10
gosub turnonyaxislbl9
gosub computelbl10
gosub turnonyaxislbl9
gosub computelbl10

return


xquarteryyyylbl12:

gosub turnonxaxislbl13
gosub computelbl10
gosub turnonyaxislbl9
gosub computelbl10
gosub turnonyaxislbl9
gosub computelbl10
gosub turnonyaxislbl9
gosub computelbl10
gosub turnonyaxislbl9
gosub computelbl10

return


turnonxaxislbl13:

aaa=aa
bbb=bb
ddd=dd

aa=cc
cc=kk
kk=ii
ii=aaa

bb=gg
gg=jj
jj=ff
ff=bbb

dd=hh
hh=ll
ll=ee
ee=ddd


return

#19 Re: Help Me ! » Combinatorics - How many unique ways to put marbles on vertices » 2014-08-13 15:07:35

so we have inadvertently changed
from hex angles to our familiar
orthogonal angles.  And now that
i recall, the articles on fcc try to
show a cube on an angle! 
so to do this problem of how many
combiations, we can just concentrate
on the geometry of the edges on a cube
and forget any dimensions and lengths
as it is perfectly symmetrical and easy
now...

#20 Re: Help Me ! » Combinatorics - How many unique ways to put marbles on vertices » 2014-08-13 14:58:53

used pythagoreans to verify center ball is right size and its the same as other 12.
so now all u need for your model is a
rubiks cube or any nice cube shape.
all u have to do is realize that the
6 ball ring is simply at a 45 degree
angle on a rubiks cube so just use
the twelve edge pieces to work
out the problem.  and now computers
can be used even easier!

#21 Re: Help Me ! » Combinatorics - How many unique ways to put marbles on vertices » 2014-08-13 14:43:07

i think i got the platonic solid.
its a cube with the eight corners
cut off exactly halfway from edge
to edge!!!!  so u get eight triangles
and six square sides.  My brother
tipped me off on this solution
because at UPS where he works
he spins boxes by opposite corners
to see the six sides.  but we also
see the six edges cut in half.  our
benzenr six ring!!!!

#22 Re: Help Me ! » Combinatorics - How many unique ways to put marbles on vertices » 2014-08-13 13:31:08

i think there are four center planes with the benzene ring around the center.  when u can visualize these planes, then you can reduce permutations by mentally checking all four planes.    also a savvy algorithm might be programmable for 2^12 reduction...

#23 Re: Help Me ! » Combinatorics - How many unique ways to put marbles on vertices » 2014-08-13 13:12:09

i think the best bet is to get some marbles and superglue to make a 13 piece solid.  i.m getting the feeling that there are triangles and rectsngles in this irregular platonic solid.  funny since its the densest.

#24 Re: Dark Discussions at Cafe Infinity » Weeks of the Seasons » 2014-07-20 20:26:14

we are in the 5th week of summer out of 13 weeks.

#25 Re: Dark Discussions at Cafe Infinity » Moon sightings » 2014-07-20 18:47:25

july 21:  waning skinny crescent two hours before dawn.

Board footer

Powered by FluxBB