@tomleslie pls enlighten me

numtheory[order](10, p), the command I was looking for...

I day after posting I found a similar question on the forum and you answered the same way, with MathML:-Export.

Indeed it does export, and in Mma the command is ImportString[mml,"Expression"], where mml is the MathML string From Maple.

Then you can import the expression back into Maple with MmaTranslator. Rgds!

@tomleslie  "Run as Administrator" and then HelpTools:-Database:-ConvertAll() did the trick. No error. Good job!

@Carl Love Yes. No pair can appear as part of one of the groups of three more than once. have you got mathematica? there is code for a Kirkman Triple here

http://mathworld.wolfram.com/KirkmansSchoolgirlProblem.html

tried to translate it into maple, but in truth i can't make head nor tail of it....

@Kitonum thanks. i tried to modify your code for the 3 player 4 group one but i obviously have a bug in it

social_golfer_problem.mw

@Markiyan Hirnyk I think @Carl Love used GlobalSearch for reason. For instance, changing the population of A from 5 to 8:  DirectSearch:-GlobalSearch gives three (x,y) solutions whereas DirectSearch:-Search only gives one.

@Carl Love thanks for solution. and Markiyan Hirnyk

Do you know a formula to extract the x component from an expression,

e.g. some_maple_formula(Obj,x)=5*abs(x-3)+2*abs(x-6)+2*abs(x-5)+abs(x-1)+3*abs(x-7)  ?

Rouben Rostamian I knew about Euclidean distance formula but not the one which permits horizontal and vertical movement. I won't post homework problems because my student days are well behind me.

@Rouben Rostamian    Thx. But where did V^2 = v^2 + v^2*t^2*b'(t)^2 spring from? It looks a lot like motion equation  v^2 = u^2 + 2.a.s.  Also would you mind posting the code for the animation Pls

@Carl Love 

@Carl Love thx for your efforts. 

i tried to use the above code to model 3 dancers, 4 m apart. the ode plot didnt and the arc length might be wrong. could you fix it pls.

triangle_persuit.mw

@Carl Love and Kitonum for your solutions.

thanks also to ThomasRichard and @Carl Love for supportive comments regarding my questions on mapleprimes.

@tomleslie i concur with you. It doesn't seem in the "spirit" of the problem to do it like he did. He made a right angle cut to the small cheese OD, withdrew the knife and then another hemispherical cut. Then withdrew the knife and made another cut ( that's 3 cuts, not 1).

@tomleslie your solution got me thinking of an alternative way. I don't remember aall of those geometry formulas, but with integration, I only need to know the equation of a circle.

x^2+y^2=(16/2)^2;
yeq:=solve(%,y)[1];
#total area:
2*int(yeq,x=-8..8)=Pi*(16^2)/4;
#checks. Let D be the coordinate the cut has to make to remove 14Pi from the medium cheese.
2*int(yeq,x=D..8)=14*Pi;
fsolve(%);
#make the cut at coordinate of D [3.6671,0]
area of segment check:
2*int(yeq,x=%..8)=evalf(14*Pi);

BUT the solution on "School of Hard Sums", which doesn't require any fancy pants geomery or calculus, is found by placing the small cheese in the centre of the medium cheese and cutting a semicircular arc around it.
This C section is put with the small cheese=1 portion.

#Area of an annulus + area small cheese:
Pi*1/4*((16^2-12^2)/2+12^2);
50 Pi

@Thomas Richard 

Windows was indeed treating it as a text file. I removed the extension and success! Thx for your help.

I'm running win 7 BTW