Re: [math-fun] How difficult are math problems? The "Putnam."

On 09/02/2016 05:28, Dan Asimov wrote:

These problems were nothing like Putnam problems. They were mainly very hard problems in numerical analysis, to calculate various tricky things to something like 10 decimal places.

And they weren't aimed particularly at the makers of mathematical software, though of course lots of mathematical software was used to solve them. The contest spawned a rather nice book, called "The SIAM 100-digit challenge", by Bornemann et al. -- g