一种带有刻度以指示距离的直尺。虽然有时说几何作图是用尺子和圆规进行的，但术语“直尺”比“尺子”更可取，因为经典希腊规则不允许使用刻度。
尺子
另请参阅
Coastline Paradox, Compass, Geometric Construction, Geometrography, Golomb Ruler, Perfect Ruler, Simplicity, Slide Rule, Sparse Ruler, Straightedge, Wichmann Ruler使用 探索
参考文献
Gardner, M. Wheels, Life, and Other Mathematical Amusements. New York: W. H. Freeman, pp. 153-155, 1983.Gardner, M. The Magic Numbers of Dr Matrix. Buffalo, NY: Prometheus, p. 230, 1985.Golomb, S. W. "How to Number a Graph." In Graph Theory and Computing (Ed. R. C. Read). New York: Academic Press, pp. 23-37, 1972.Smogorzhevskii, A. S. The Ruler in Geometrical Constructions. New York: Blaisdell, 1961.在 中被引用
尺子引用为
Weisstein, Eric W. "Ruler." 来自 Web 资源。 https://mathworld.net.cn/Ruler.html