diff --git a/images/elliptic-curve-group-structure.tikz b/images/elliptic-curve-group-structure.tikz
@@ -8,18 +8,18 @@
\clip(-3., -3.2) rectangle (3.5, 3.2);
% The curve
- \draw[smooth, samples=100, domain=-2.6712104999999995:0.5950260813349957]
+ \draw[thick, smooth, samples=100, domain=-2.6712:0.5950]
plot(\x, {sqrt((\x)^(3)-5.9*(\x)+3.3)});
- \draw[smooth, samples=100, domain=2.076187129580795:3.5]
+ \draw[thick, smooth, samples=100, domain=2.0762:3.5]
plot(\x, {sqrt((\x)^(3)-5.9*(\x)+3.3)});
- \draw[smooth, samples=100, domain=-2.6712104999999995:0.5950260813349957]
+ \draw[thick, smooth, samples=100, domain=-2.6712:0.5950]
plot(\x, {0-sqrt((\x)^(3)-5.9*(\x)+3.3)});
- \draw[smooth, samples=100, domain=2.076187129580795:3.5]
+ \draw[thick, smooth, samples=100, domain=2.0762:3.5]
plot(\x, {0-sqrt((\x)^(3)-5.9*(\x)+3.3)});
% The intersection lines
- \draw[color=violet] ( -3, 1.2218) -- ( 3.5, 2.5105);
- \draw[color=violet] (-2.5534, -3.2) -- (-2.5534, 3.2);
+ \draw[thick, color=violet] ( -3, 1.2218) -- ( 3.5, 2.5105);
+ \draw[thick, color=violet] (-2.5534, -3.2) -- (-2.5534, 3.2);
% The intersection points
\filldraw ( 0, 1.8165902124584950) circle (1.0pt);