"700 years ago, a monk needed parchment for a new prayer book. He pulled the copy of Archimedes' book off the shelf, cut the pages in half, rotated them 90 degrees, and scraped the surface to remove the ink, creating a palimpsest—fresh writing material made by clearing away older text. Then he wrote his prayers on the nearly-clean pages."
- A Prayer for Archimedes
posted by anastasiav
on Jan 3, 2014 -
is a free Computer Algebra System
(CAS) available from Microsoft. A CAS is a program
that can solve purely symbolic mathematical equations. For example, the program can tell you that the derivative of 6x^2 + 12x is 12x + 12. The program has functions for calculus, statistics, linear algebra, and graphing. One interesting feature of the program is that in some cases it can show and describe the intermediate steps involved in solving an equation. Here’s a 16 page tutorial
(in MS Word docx format) showing how to use the program. The program can be downloaded from the Microsoft download page
. Thirty-two and sixty-four bit versions are available. The program only works on XP/Vista/Windows 7.
posted by Jasper Friendly Bear
on May 23, 2011 -