Keywords: Logarithmic spiral.svg Logarithmic spiral Spirale logarithmique Spirale logaritmica Logarithmische Spirale own Made using gnuplot script below minor fixes in Inkscape Reworked using cubic bézier curves 2008-05-05 Leafnode public domain Use cubic bézier curves instead of polygons Gnuplot script Output to svg file set terminal svg size 1024 768 set output logarithmic_spiral svg Same scale for both axes half-size output set size ratio -1 0 5 0 5 More sample points to produce smoother picture set samples 480 Axes in the center no tick marks set zeroaxis unset xtics unset ytics unset border set polar plot -4 pi 4 pi -8 10 -8 6 1 19 t notitle Logarithmic spirals Images with Gnuplot source code |