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Maths in a minute: Asymptotic expansions
Approximating a function with a divergent series.
Content about “asymptotics”
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The power of small things: Resurgent asymptotics
If you ignore exponentially small terms they can come back to bite you.
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The power of small things
Beware of exponentially small terms!
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Stokes's phenomenon: An asymptotic adventure
How a question about rainbows led to an entire field of mathematics.
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Maths in a minute: The prime number theorem
A quick look at one of the most important theorems in number theory.