中文说明： 我们是nr.com，数值食谱软件。我们是一个最旧的连续经营网站，追溯到 1993 年时仅有约 25,000 域在互联网。（今天，这一数字是约 200000000）。在我们与剑桥大学出版社的伙伴关系，我们发展数值食谱系列的科学计算和相关的软件产品的书。
English Description：
We are nr.com, Numerical Recipes Software. We are one of the oldest continuously operating sites on the Web, dating back to 1993 when there were only about 25,000 domains in the Internet. (Today, that number is about 200,000,000.) In partnership with Cambridge University Press, we develop the Nu