2014/Ellipser 썸네일형 리스트형 Device for drawing ellipse We have had a tool to draw a line, a compass to draw a circle and a tool to measure an angle. However,we have never had any tool to draw an ellipse of a desired shape in human history. He had to draw an ellipse using geometrical construction. The advent of computer graphic resolved this problem so easily. However, the fact that there has never been an analog method to draw an ellipse became a st.. 더보기 이전 1 다음