Removing Plot's Asymptote
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Can you help why and how to remove the asymptotes that this code is producing in the graph? Here's my code:
f = @(x)tan(x)-x-1;
r1 = fsolve(f,-7);
r2 = fsolve(f,1);
r3 = fsolve(f,7);
root1 = char(vpa(r1,6));
root2 = char(vpa(r2,6));
root3 = char(vpa(r3,6));
fprintf('The roots are %s, %s, and %s. \n',root1,root2,root3)
x = -10:0.0001:10;
y = f(x);
plot(x,y), hold on, grid on
plot(r1,0,'rx','LineWidth',2,'MarkerSize',12);
plot(r2,0,'rx','LineWidth',2,'MarkerSize',12);
plot(r3,0,'rx','LineWidth',2,'MarkerSize',12);
title('The graph of tan(x) - x - 1','FontSize',13)
axis([-10,10,-10,10])
Thank you very much.
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Réponse acceptée
Matt J
le 31 Déc 2012
Don't plot a single curve over x = -10:0.0001:10
Generate and plot separate x,y loci in the intervals (e.g., [-pi/2,pi/2]) between the asymptotes.
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