Construction of a Parabola Small 270×320 Medium 540×640 Large 864×1024 Download Tiff Original 2026×2400 | (297.0 KB) Description Diagram showing how to construct a parabola when given the directrix (d), the focus (F) and the eccentricity (m). Keywords cone, conic section, conics, construct, construction, directrix, eccentricity, focus, parabola, parabolas, plane, planes Galleries Conic Sections: Parabolas Source: Arthur Latham Baker The Elements of Solid Geometr with Numerous Exercises (Boston, MA: Ginn & Company, 1893)