I HAVE read Mr. Dodwell's remarks with interest. It will be noticed that I did not say that it was my friend Mr. Siemens that made the statement, but merely that it was said at the meeting. My ...

The square root of 2 has been calculated to 1,000,000 decimals on a large-scale digital computer and the result has been verified. The calculation was based on a specially developed algorithm for ...

IN NATURE of June 9, a correspondent, A. R., gives a method of James Thomson's for obtaining a series of convergents to a square root in the form of vulgar fractions.