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Re: Maths problem - number Ninjas needed!

Posted: Wed Oct 10, 2012 2:20 pm
by LA_Boxers
Image

Re: Maths problem - number Ninjas needed!

Posted: Wed Oct 10, 2012 3:38 pm
by kruptah
now thats some math i can get done,
LA_Boxers wrote:Image

Re: Maths problem - number Ninjas needed!

Posted: Wed Oct 10, 2012 4:27 pm
by slothrop
That's numberwang!

Re: Maths problem - number Ninjas needed!

Posted: Wed Oct 10, 2012 5:29 pm
by ascent
take
n as any integer variable
gT as the total number of groups
g2 as the number of groups of size 2
g3 as the number of groups of size 3

we know

gT = g2 + g3

to find the best total number of groups:

gT = 4*round(n/10)

due to the way changing a group from 2 to 3 allows us to count up in increments of 1 it is quite simple

g2 = 3gT - n
g3 = -2gT + n

you will see that some values of n are not solvable, such as 13, 14, 15 and of course any n < 8

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 7:16 am
by wub
Oooooo...that looks like just what I was after. Thanks :D

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 7:49 am
by dmz007
Type "spy" in at the MATLAB terminal. It will blow your mind :W:

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 9:18 am
by volcanogeorge
is that the one that draws the picture of spy vs spy as a graph?

i went through all the easter eggs when i was bored last year

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 9:54 am
by LACE
aww shame i missed this, that's what i get for having a life i guess but i've still managed to figure something out for you wubbz

Xi = {2,3} so as a function you could say X(0) = 2, X(1) = 3 and f(x) = X(x) where x is either 0 or 1.

so now you have S total things but the number of groups needs to be divisible by four yes?

put N to be the number of groups: then N % 4 = 0 and the % is the modulus which gives the remainder of N/4

umm you also got S = Sum of X_i from i = 1 to N.

there are alot of possible combos for the actual groups, there's no one formula to get all the x_i's as you've seen in this thread.

my suggestion to you though would be to look at different combos of different configurations of groups and forget about the ones that don't have N be a multiple of 4.

i'll break it down for you since i'm such a darl

N = number of groups
S = total number of things
X_i = number of objects in group i where i is a whole number from 1 to N and
S = Sum X_i i = 1 to N
N % 4 = 0
X(a) = 2 if a = 0 or X(a) = 3 if a = 1 and a can only equal 0 or 1

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 9:54 am
by LACE
.

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 9:54 am
by LACE
goddamn work computer always double posts.

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 9:55 am
by wub
LACE wrote:aww shame i missed this, that's what i get for having a life i guess but i've still managed to figure something out for you wubbz

Xi = {2,3} so as a function you could say X(0) = 2, X(1) = 3 and f(x) = X(x) where x is either 0 or 1.

so now you have S total things but the number of groups needs to be divisible by four yes?

put N to be the number of groups: then N % 4 = 0 and the % is the modulus which gives the remainder of N/4

umm you also got S = Sum of X_i from i = 1 to N.

there are alot of possible combos for the actual groups, there's no one formula to get all the x_i's as you've seen in this thread.

my suggestion to you though would be to look at different combos of different configurations of groups and forget about the ones that don't have N be a multiple of 4.

i'll break it down for you since i'm such a darl

N = number of groups
S = total number of things
X_i = number of objects in group i where i is a whole number from 1 to N and
S = Sum X_i i = 1 to N
N % 4 = 0
X(a) = 2 if a = 0 or X(a) = 3 if a = 1 and a can only equal 0 or 1

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 9:58 am
by Forum
Half base x height

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 10:02 am
by LACE
:cornlol:

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 11:30 am
by daeMTHAFKNkim
I feel retarded looking at your guys posts. :corntard:

1+1 is 2.

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 11:31 am
by idontreallygiveashit
^ way to be a stereotype

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 7:04 pm
by dmz007
So is the aim to determine the minimum number of groups needed?
If so then I think I have a solution and could upload a dodgy .exe program today if you want.

Select Windows or Linux :lol:

Re: Maths problem - number Ninjas needed!

Posted: Thu Oct 11, 2012 7:17 pm
by fractal
LACE wrote:aww shame i missed this, that's what i get for having a life i guess but i've still managed to figure something out for you wubbz

Xi = {2,3} so as a function you could say X(0) = 2, X(1) = 3 and f(x) = X(x) where x is either 0 or 1.

so now you have S total things but the number of groups needs to be divisible by four yes?

put N to be the number of groups: then N % 4 = 0 and the % is the modulus which gives the remainder of N/4

umm you also got S = Sum of X_i from i = 1 to N.

there are alot of possible combos for the actual groups, there's no one formula to get all the x_i's as you've seen in this thread.

my suggestion to you though would be to look at different combos of different configurations of groups and forget about the ones that don't have N be a multiple of 4.

i'll break it down for you since i'm such a darl

N = number of groups
S = total number of things
X_i = number of objects in group i where i is a whole number from 1 to N and
S = Sum X_i i = 1 to N
N % 4 = 0
X(a) = 2 if a = 0 or X(a) = 3 if a = 1 and a can only equal 0 or 1
:U:
wub wrote:
:cornlol:

Re: Maths problem - number Ninjas needed!

Posted: Fri Oct 12, 2012 2:13 am
by BonerJams04
fucking hell you guys are smart

Re: Maths problem - number Ninjas needed!

Posted: Fri Oct 12, 2012 8:23 am
by Forum
Reverb wrote:fucking hell you guys are smart
Thank you

Re: Maths problem - number Ninjas needed!

Posted: Fri Oct 12, 2012 8:26 am
by Electric_Head
Reverb wrote:fucking hell you guys are smart
Do some phyiscs, you'll soon realize a page long equation is not always right.