More work on presentation

graphics/background/sign-based-overlay.typ

@@ -0,0 +1,34 @@
+#import "@preview/cetz:0.3.4": canvas
+#import "@preview/cetz-plot:0.1.1": plot, chart
+
+#let ymax = 1/calc.sqrt(2*calc.pi)
+
+#let line_style = (stroke: (paint: black, thickness: 3pt))
+#let dashed = (stroke: (dash: "dashed"))
+#canvas({
+
+  plot.plot(size: (11,6),
+    legend: "north",
+    legend-style: (orientation: ltr, item: (spacing: 0.5)),
+    x-tick-step: none,
+    x-ticks: ((0, [0]), (100, [0])),
+    y-label: $cal(Q)(1, x)$,
+    x-label: $x$,
+    y-tick-step: none,
+    y-ticks: ((0, [0]), (ymax, [1])),
+    axis-style: "left",
+    x-min: -3,
+    x-max: 3,
+    y-min: 0,
+    y-max: ymax,{
+    plot.add(
+      plot.sample-fn(
+        (x) => 1/calc.sqrt(2*calc.pi)*calc.exp(-(calc.pow(x,2)/2)),
+        (-3, 3),
+        300),
+      style: (stroke: (paint: red, thickness: 3pt)),
+ //     label: [PDF einer Normalverteilung]
+    )
+    plot.add(((-3,0), (0,0), (0,ymax), (3,ymax)), style: line_style, /*label: [$cal(Q)(1,x)$]*/)
+  })
+})