Keywords: Quadrifolium-comma decimals.svg en Graph of a quadrifolium curve r sin 2 theta Note Same as in the original except that numbers are written with decimal comma for all languages requiring it Quadrifolium svg 2011-05-05 00 52 UTC Quadrifolium svg Mktyscn derivative work B Jankuloski <span class signature-talk >talk</span> <gallery> File Quadrifolium svg Decimal point version </gallery> Changed to decimal comma Bjankuloski06en Quadrifolium svg Own work by uploader Mktyscn 2009-08-31 SVG </nowiki> Uploaded with derivativeFX Category Quadrifolium SVG mathematics |