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MaplePrimes Activity

These are questions asked by radaar

I am trying to evaluate the following summation which gives the result 0. But I think answer is not correct.

restart; x := 0; evalf(Sum(Sum(x^(q-p), p = 0 .. q), q = 0 .. 10))





Download zero.mw

I am trying to evaluate the following triple integral but it takes much time so i kill the job.


restart; R := 5; KK := proc (theta) options operator, arrow; evalf(int(int(int(1/(R*sin(theta)^2+(R*cos(theta)+Z)^2+(2*R*k.sin(theta))*cos(p))^2, p = 0 .. 2*Pi), Z = 0 .. 60), k = 1 .. 10, numeric)) end proc; evalf(KK((1/6)*Pi))

Warning,  computation interrupted




Download int_maple_prime2.mw

I am trying to evaluate the following function for which I am getting a result 0. I just need to make sure the approach as well as result is correct or not. Thanks in advance. 

restart; Digits := 20; r := 5; Z := 0; KK := proc (phi) options operator, arrow; evalf(int(sin(phi)*sin(-arctan((p*cos(phi)+Z)/sqrt(p^2*sin(phi)^2+r^2)))*hypergeom([5/2, 3/2], [5/2], sin(-arctan((p*cos(phi)+Z)/sqrt(p^2*sin(phi)^2+r^2)))^2)/(p^2*sin(phi)^2+r)^2, p = -1 .. 1, numeric)) end proc; evalf(KK((1/6)*Pi))





Download int(maple_prime).mw

I am interested to know difference between eval and evalf. Will evaluating a function at a point using these commands gives the same answer or not. I mean will there will be any exception or not. How can I evaluate the value of  a series using eval instead of evalf without the problem of memory running out (No comprimise in accuracy).

I have installed maple in my 64 bit linux and on running calculation a window pop up saying kernel connection not available. I have disabled my firewall still the problem persist. The window freezes on clicking menu. Thankz in advance.

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