This is a git repository of the source files for the book The Elements of non-Euclidean Geometry by Coolidge, Julian Lowell. This book is in the Public Domain, see ...

MR. HALSTED is already favourably known to English mathematicians by an excellent “Elementary Treatise on Mensuration” (published in the summer of 1881), and by one or two carefully compiled ...

From version 1.6.0 to 2.0.0, an exception is thrown when initializing some Sweep objects, in cases where possible earlier. A reproducible example is included below. Test method ...

THIS is one more Text-book of Geometry. It adopts completely the general principles of the geometrical reformers in England, in the classification of the rems according to their subjects, the free use ...

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