ملف:Rose-rhodonea-curve-7x9-chart.svg

English: Mathematical "rose" or "rhodonea" curves, based on the polar-coordinates equation r=sin(θ*n/d). In this chart, the values of parameter n varies from 1 to 7, while d varies from 1 to 9.

Based on File:Rose-rhodonea-curve-7x7-chart.svg, which was in turn inflenced by File:Rhodonea_curve.png (but with the rows reversed in the layout of the chart).

This graphic converted from the following PostScript vector source code (a slight modification of that used to produce File:Rose-rhodonea-curve-7x7-chart.svg):

%!
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36 moveto(d)show 30 60 moveto(n)show 22.5 49 moveto(\\)show/Times-Roman
42 selectfont 1 1 9{/d exch def 12 -18 moveto d 1 string cvs show 1 1
7{/n exch def gsave n 80 mul 0 translate d 1 eq{-10 44 moveto n 1 string
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360 arc closepath fill 0 setgray n d gt{/res n def}{/res d def}ifelse/w{
d mul res div/th exch def th n mul d div/x exch def x sin th cos mul x
sin th sin mul}def 0 w moveto 1 1 360 res mul{w lineto}for stroke
grestore}for 0 -80 translate}for showpage
%EOF