Results 271 to 280 of about 2,046,742 (302)
Some of the next articles are maybe not open access.
Archive for History of Exact Sciences, 2002
The author shows convincingly that J. B. J. Delambre (1817) was right in attributing to Hipparchus the use of celestial spherical coordinates and that \textit{O. Neugebauer}, on pp. 277-280 of [`A history of ancient mathematical astronomy. Vol. I. New York: Springer (1975; Zbl 0323.01002)] was wrong in denying this fact.
openaire +1 more source
The author shows convincingly that J. B. J. Delambre (1817) was right in attributing to Hipparchus the use of celestial spherical coordinates and that \textit{O. Neugebauer}, on pp. 277-280 of [`A history of ancient mathematical astronomy. Vol. I. New York: Springer (1975; Zbl 0323.01002)] was wrong in denying this fact.
openaire +1 more source
1996
Abstract In this book, all coordinate systems used are orthogonal unless stated otherwise. The coordinate variables and the corresponding unit vectors in the general orthogonal system will be denoted by (v1, v2, v3) and (u1, u2, u3). The coefficients hi 's are called the metric coefficients of that system.
openaire +1 more source
Abstract In this book, all coordinate systems used are orthogonal unless stated otherwise. The coordinate variables and the corresponding unit vectors in the general orthogonal system will be denoted by (v1, v2, v3) and (u1, u2, u3). The coefficients hi 's are called the metric coefficients of that system.
openaire +1 more source