Présentation de 6421.jps

/syracuse/bbgraf/tmp/6421.jpg
30 setxunit 7.5 setborder -1.5 1.5 setxrange -1.5 15 setyrange jpegmode 1 1 settkstep .5 .5 setsubtkstep 1 1 setmkstep ticks subticks marks traceaxes axesarrow 0.75 setlinewidth continu bleu /X {settvar #rpn# t*Cos (t) } def /Y {settvar #rpn# t*Sin (t) } def 0 5 pi mul {X} {Y} Courbeparam