Language Selection

English French German Italian Portuguese Spanish

1,000 year-old math problem solved

Filed under
Misc

Normally I would avoid maths problems where scientists start off by saying: "The numbers involved are so enormous that if their digits were written out by hand they would stretch to the moon and back."

Thankfully there are people who are challenged by such numbers and this week a group of such researchers said they, through a technique for multiplying large numbers, have figured out congruent numbers up to a trillion. Apparently no one had taken them beyond a billion for some reason.

In case you were wondering, a the first few congruent numbers are 5, 6, 7, 13, 14, 15, 20, and 21. The problem, which was first posed more than a thousand years ago, concerns the areas of right-angled triangles. The difficult part is to determine which whole numbers can be the area of a right-angled triangle whose sides are whole numbers or fractions. The area of such a triangle is called a "congruent number."

rest here




And the answer was...

42!

re: answer

lolol

Applied Math vs Theoretical Math

the article wrote:
"Old problems like this may seem obscure, but they generate a lot of interesting and useful research as people develop new ways to attack them,"

Name 5.

Obscure theoretical math does nothing but generate obscure theoretical mathematicians.

Back in my uni days, the study of such useless junk math was called mathturbation.

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

More in Tux Machines

Thunderbolt 3 in Fedora 28

  • The state of Thunderbolt 3 in Fedora 28
    Fedora 28 is around the corner and I wanted to highlight what we did to make the Thunderbolt 3 experience as smooth as possible. Although this post focuses on Fedora 28 for what is currently packaged and shipping, all changes are of course available upstream and should hit other distributions in the future.
  • Thunderbolt 3 Support Is In Great Shape For Fedora 28
    Red Hat developers have managed to deliver on their goals around improving Thunderbolt support on the Linux desktop with the upcoming Fedora 28 distribution update. This has been part of their goal of having secure Thunderbolt support where users can authorize devices and/or restrict access to certain capabilities on a per-device basis, which is part of Red Hat's Bolt project and currently has UI elements for the GNOME desktop.

New Heptio Announcements

Android Leftovers

New Terminal App in Chome OS Hints at Upcoming Support for Linux Applications

According to a Reddit thread, a Chromebook user recently spotted a new Terminal app added to the app drawer when running on the latest Chrome OS Dev channel. Clicking the icon would apparently prompt the user to install the Terminal app, which requires about 200 MB of disk space. The installation prompt notes the fact that the Terminal app can be used to develop on your Chromebook. It also suggests that users will be able to run native apps and command-line tools seamlessly and securely. Considering the fact that Chrome OS is powered by the Linux kernel, this can only mean one thing. Read more