Trigonometria Artificialis
Trigonometria Artificialis, compiled by Adriaan Vlacq and published in 1633, is a mathematical treatise of logarithmic and trigonometric tables for working astronomers, surveyors and navigators. Its figures are plain line diagrams of spherical triangles and arcs lettered with capitals, drawn in a sparse engraved style that a designer could borrow for geometric or schematic motifs.
