How gravity causes a perfectly spherical ball to roll down an inclined plane is part of the elementary school physics canon.

Masaki Kashiwara, this year’s Abel Prize winner, co-founded a new field of mathematics called algebraic analysis ...

Make sure you know when to calculate an answer and when you are ... If you are finding the length of a side of a right-angled triangle and you know two of the sides you can use Pythagoras to ...

The function computes the sum shown in the attached image, for each of 1001 values of t uniformly spaced from 0 to 4pi inclusive. The input argument is a scalar non-negative integer n, and the output ...

The "pointed" end treatment caps the stroke with a centered triangle that has 45 degree angles on each side. More complex end treatments are available through parameter lists with helper functions to ...