Parallel Projections of Figures.If any figure be referred to a system of co-ordinates, rectangular or oblique, and if a second figure be constructed by means of a second system of co-ordinates, rectangular or oblique, and either agreeing with or differing from the first system in rectangularity or o
rectangularity הגייה עם משמעויות, מילים נרדפות, הפכים, תרגומים, משפטים ועוד