diff --git a/Documentation/input/interactive.fig b/Documentation/input/interactive.fig
new file mode 100644
index 0000000..1e7de38
--- /dev/null
+++ b/Documentation/input/interactive.fig
@@ -0,0 +1,42 @@
+#FIG 3.2
+Landscape
+Center
+Inches
+Letter  
+100.00
+Single
+-2
+1200 2
+2 1 0 2 0 7 50 0 -1 6.000 0 0 -1 0 0 6
+	 1200 3600 1800 3600 2400 4800 3000 4800 4200 5700 4800 5700
+2 2 0 1 0 7 50 0 -1 4.000 0 0 -1 0 0 5
+	 1200 3150 4800 3150 4800 6300 1200 6300 1200 3150
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 0 0 2
+	 1200 4800 4800 4800
+2 1 1 1 0 7 50 0 -1 4.000 0 0 -1 0 0 4
+	 2400 4800 2400 6525 1950 7125 1950 7800
+2 1 1 1 0 7 50 0 -1 4.000 0 0 -1 0 0 4
+	 3000 4800 3000 6525 3600 7125 3600 7800
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 0 1 3
+	0 0 1.00 60.00 120.00
+	 3825 5400 4125 5100 5400 5100
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 0 1 3
+	0 0 1.00 60.00 120.00
+	 2100 4200 2400 3900 5400 3900
+2 1 1 1 0 7 50 0 -1 4.000 0 0 -1 0 0 2
+	 4800 5700 5400 5700
+2 1 1 1 0 7 50 0 -1 4.000 0 0 -1 0 0 2
+	 1800 3600 5400 3600
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 0 1 3
+	0 0 1.00 60.00 120.00
+	 2700 4800 2700 4425 5400 4425
+2 1 0 1 0 7 50 0 -1 4.000 0 0 -1 1 1 2
+	0 0 1.00 60.00 120.00
+	0 0 1.00 60.00 120.00
+	 1950 7800 3600 7800
+4 1 0 50 0 0 12 0.0000 4 135 810 2775 7725 Dead band\001
+4 0 0 50 0 0 12 0.0000 4 180 1155 5400 5700 right saturation\001
+4 0 0 50 0 0 12 0.0000 4 135 1065 5400 3600 left saturation\001
+4 0 0 50 0 0 12 0.0000 4 180 2505 5400 3900 left coeff ( positive in that case )\001
+4 0 0 50 0 0 12 0.0000 4 180 2640 5475 5100 right coeff ( negative in that case )\001
+4 0 0 50 0 0 12 0.0000 4 105 480 5400 4425 center\001