IN defining the forms and dimensions of solids by means of scale drawings, a very useful method in certain cases is that of metric projection whereby three systems of parallel edges of the solid are ...
Zur lehre der Parallel-projection und der Flächen Grundzüge einer Theorie der cubischen Involutionen
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 ...
It is shown that a two-level orthogonal array with strength three whose run size is not a multiple of 16 has the hidden projection property that in its projection on to any five factors, all the main ...
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