Abstract
THESE two reprints from the “Abhandlungen der k. böhm. Gesellschaft der Wissenschaften” are purely mathematical, as may be gathered from their titles. The author of the first treatise states that the orthogonal projection of broken lines on given axes, whether in a plane or in space, has been discussed in scientific works on theoretical and practical mathematics, but the oblique projection has not obtained so great prominence. The subject is gone into very thoroughly by Dr. Matzka, as may be inferred from the fact of its discussion occupying 70 quarto pages.
Zur lehre der Parallel-projection und der Flächen.
Von Prof. Dr. Wilhelm Matzka. (Prag, 1874.)
Grundzüge einer Theorie der cubischen Involutionen.
Von Dr. Emil Weyr. (Prag, 1874.)
Article PDF
Rights and permissions
About this article
Cite this article
Zur lehre der Parallel-projection und der Flächen Grundzüge einer Theorie der cubischen Involutionen . Nature 12, 513 (1875). https://doi.org/10.1038/012513a0
Issue Date:
DOI: https://doi.org/10.1038/012513a0