Wolfram Research has announced that it is now shipping Mathematica 4.1—the popular statistical tool widely used in industry, research and education—for Mac OS X. The product includes greatly enhanced symbolic differential equation solvers and dramatic speed increases for statistical functions. In addition, the Unix core of Mac OS X provides the ability to handle calculations requiring open-ended amounts of memory and vastly improved stability. Mathematica for Mac OS X is available now for US$1,495, with discounts available for upgrades, site licenses, teachers and students.