Terribly in Need, Matlab... - Sajha Mobile
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Terribly in Need, Matlab...
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guchcha chor
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Hello MatLab /C++ gurus out there,
I tried to do it.. I couldn't. Please help me....
F22
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Its in no way complete and hasn't been verified but should be enough of a pointer to get you in the right track if using Matlab:

clear
clc
N = 2;
e = 100;
e1 = 10^-5;
piii(1)= 1/0.75;
while e >= e1
pii=0;
for k=1:N
piii1= ((-1)^(k+1))/(0.5*k-0.25);
pii=piii1+pii;
end
piii(N)=pii;
e=abs(piii(N)-piii(N-1))/piii(N-1);
N=N+1;
end

On a second note you could tell the Prof., " I can use pi function of Matlab to get the damn number, why worry about doing the homework"
santosh1984
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Here is the code. It is perfectly running and does converge to 3.1416 for e=10^-8 with N= 63661979. Do the same for 10^-1 thru 10^-8. Hope you know how to make plots after this. Make sure the name of mat-file is pii.m and enjoy!!!!

function pii


clc


N=2;


pii=((-1)^2)/(0.5*1-0.25);


e=1;


 


while e>=10^-8;


    pii_old=pii;


    k=N;


    pii1= ((-1)^(k+1))/(0.5*k-0.25);


    N=N+1;


    pii=pii_old+pii1;


    e=abs(pii-pii_old)/pii_old;


end


pii_old


pii


N


e


guchcha chor
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Thank you very much F22 and Santosh1984. I was dying to get the right answer...
Thank you
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