本稿では，球面上の点を複素平面上の点と対応させる立体射影(Stereographic projection)について解説する． 本稿の動機は， 3次の特殊回転群$${SO(3)}$$のEuler角を用いた表現と2次の特殊ユニタリー群$${SU(2)}$$のCayley-Kleinのパラメータを用いた表現との対応関係を見る ...

old functions I never found when i needed, scatter plots with added fault strike and dip convert dip direction to strike, plot planes as poles and poles as planes using wullf stereographic projection.

This week’s selection is the Stereographic Projection by mathematician Henry Segerman. Segerman has appeared in our pages many times previously, and with good reason: he is a mathematician that uses ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. A stereographic projection maps a ...

F. W. SOHON, S.J., director of the Seismological Observatory of Georgetown University, has written a very valuable book. This is a method of representing a solid body (usually figures on the surface ...

Abstract: This paper proposes a new projection model for mapping a hemisphere to a plane. Such a model can be useful for viewing wide-angle images. Our model consists of two steps. In the first step, ...

As the large amount of data collected by the ESA Huygens probe during its descent onto Titan is being processed, new views of this fascinating world become available. The Descent Imager Spectral ...