Question: Overflow? An abrupt in a plot suppose to be smooth..

I am doing this plot

loglogplot((.45*exp(-0.5e-1*t)+.1*exp(-.1*t))/exp(-0.5e-1*t), t = 1.4*10^4 .. 1.52*10^4);

and I got this weird abrupt change at some point: (please see the attached maple file)

I guess it is due to how Maple implement those very large/small numbers.. Any thoughts?

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