## #math - Mon 5 Mar 2007 between 00:05 and 01:14

### NY Lost Funds

 josesito anyone know where to find statistical algorithms for common distributions?? (in basic)(statistical distributions) eigma any ideas for an algorithm that distributes n items randomly among m bins, up to a maximum of k items in each bin? TRWBW eigma: well you could just re-try if the bin is fulll eigma I'm sorry? TRWBW eigma: start throwing them in bins. if you are about to throw one in a bin with k items, try another eigma hmm.. okay TRWBW eigma: if you want, you can get fancier, but that will work at least eigma yeah.. zbrown Would this be a suitable recursive function for the set of odd positive integers? "a_(n+1) = a_n + 2 where a_1 = 1" ? Jafet zbrown: Uh, yeah. zbrown Jafet: thanks. geckosen1tor how do I project a vector onto a plane? TRWBW geckosen1tor: two ways, you can take out the part normal to the plane, or extract the part in the plane geckosen1tor ok, so say I have a normal vector for the plane TRWBW geckosen1tor: well do you know how to project a vector along another vector? geckosen1tor I forgot the formulabut I have done thatit's a dot product times the normal vector? TRWBW geckosen1tor: pretty muchgeckosen1tor: does your plane go through the origin or is it floating somewhere in space? geckosen1tor floatingactually I have 2 vectors and a pointthat defines the planethen I have a third vector TRWBW geckosen1tor: the normal i guess? geckosen1tor er noi get the normal from the cross of the first 22 vectors and a point define the plane TRWBW geckosen1tor: using your language, i'm unclear on whether the 3rd vector is a vector or a point geckosen1tor then a third vector I want to project on the plane TRWBW geckosen1tor: and yes, you can use the cross productgeckosen1tor: you sure it's a vector? not a point? it makes a difference. vectors are differences of points geckosen1tor I understand how to do it by subtracting out the part to the normalok, in total I have 3 vectors and 1 pointthe first two vectors and the point define a plane TRWBW geckosen1tor: so the 3rd vector starts from where? geckosen1tor the pointall 3 start from the point TRWBW geckosen1tor: okay, then you can ignore the point, it won't be relevant here.