Two mathematicians now say they’ve made progress on a very old unsolved math problem. The problem involves a subfield called geometric measure theory, in which sets of objects a ...

Today will be another dry and fine day with plenty of sunshine. It will be a cooler day but it will be less breezy. Tonight Tonight will continue dry with clear skies. The odd patch of mist and ...

The file also provides teardrop2d, which is useful for 3D printable holes. Many of the commands have module forms that produce geometry and function forms that produce a path.

Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU–HKU Joint Laboratory in Rare Earth Materials and Bioinorganic ...