hi every one i need series for erfc(x) match with it in plot
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i need correct series for the equation of erfc(x) and maching with it in plot
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Sam Chak
2022년 9월 22일
Hi @sura
Are you looking for something like this?
syms x
sympref('PolynomialDisplayStyle', 'ascend');
f = erfc(x); % function
T = taylor(f, 'Order', 8) % Taylor series
xd = -2:0.1:2;
yd = subs(f, x, xd);
fplot(T, [-2, 2])
hold on
plot(xd, yd, 'r-.'), grid on
title('Taylor approximation vs. actual function')
legend('Taylor','Function')
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Torsten
2022년 9월 22일
If you had studies Sam Chak's answer, you would have seen that your series expansion is just the one that he used for the plot.
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