Function for canculating π

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Apostolia Argyropoulou
评论： Ameer Hamza 2020-4-27
I would want to ask,which is the function,which can canculate the number π from series of Leibniz and 2 of Euler and the error |y- π| ?

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回答（1 个）

Ameer Hamza
Ameer Hamza 2020-4-27
This one is for Leibniz
N = 100; % number of terms
den = 1:2:2*N-1;
signs = (-1).^(0:N-1);
terms_leibniz = 4./den.*signs;
pi_leibniz = cumsum(terms_leibniz);
err_leibniz = abs(pi-pi_leibniz);
plot(pi_leibniz);
hold on
yline(pi);
This one is for Euler
N = 100; % num terms
terms_euler = 6./(1:N).^2;
pi_euler = sqrt(cumsum(terms_euler));
err_euler = abs(pi-pi_euler);
plot(pi_euler);
hold on;
yline(pi);

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