-2 2.1 setxrange
-1.3 1.8 setyrange
60 setxunit
90 setangle_repere

traceaxes
axesarrow
 
/O{0 0} def
/cerc{O 1} def
cerc cercle

/X {38.17 cerc cpoint} def
/Y {141.93 cerc cpoint} def

gsave
pointilles
[-1.8 0.618 1.2 0.618] ligne
[-1.8 1 1.2 1] ligne
grestore

<latex>
$1$
</latex>
0 1 [1.4 dup] urtexlabel

<latex>
$u$
</latex>
2.05 0 [1.4 dup] dltexlabel

<latex>
$v$
</latex>
0 1.7 [1.4 dup] crtexlabel

<latex>
$\arcsin\left({\frac{-1+\sqrt{5}}{2}}\right)$
</latex>
0.7 0.618 [1.1 dup] urtexlabel

<latex>
$\pi-\arcsin\left({\frac{-1+\sqrt{5}}{2}}\right)$
</latex>
-0.3 0.618 [1.1 dup] dltexlabel

[0 0.618] points
<latex>
${\frac{-1+\sqrt{5}}{2}}$
</latex>
0 0.618 [1.1 dup] drtexlabel

gsave
4.2 setlinewidth
38.17 141.93 cerc Cercle
grestore

/dotscale {2.0 dup} def
gsave
[X Y 0 1] {point} plot
grestore