From bebdddd5993effa1f9475b7ec4d645e90130861a Mon Sep 17 00:00:00 2001
From: Sven Riwoldt <sven.riwoldt@me.com>
Date: Wed, 14 Feb 2024 20:09:14 +0100
Subject: [PATCH] vier Versuche

---
 gnuplot/versuch01.gp | 17 ++++++++++++
 gnuplot/versuch02.gp | 18 +++++++++++++
 gnuplot/versuch03.gp | 62 ++++++++++++++++++++++++++++++++++++++++++++
 gnuplot/versuch04.gp | 15 +++++++++++
 4 files changed, 112 insertions(+)
 create mode 100644 gnuplot/versuch01.gp
 create mode 100644 gnuplot/versuch02.gp
 create mode 100644 gnuplot/versuch03.gp
 create mode 100644 gnuplot/versuch04.gp

diff --git a/gnuplot/versuch01.gp b/gnuplot/versuch01.gp
new file mode 100644
index 0000000..a76e5a1
--- /dev/null
+++ b/gnuplot/versuch01.gp
@@ -0,0 +1,17 @@
+set xzeroaxis
+set yzeroaxis
+set border 0          # remove frame
+set xtics axis        # place tics on axis rather than on border
+set ytics axis
+set ticscale 0        # [optional] labels only, no tics
+set xtics add ("" 0)  # suppress origin label that lies on top of axis
+set ytics add ("" 0)  # suppress origin label that lies on top of axis
+#
+# if arrows are wanted only in the positive direction
+set arrow 1 from 0,0 to graph 1, first 0 filled head
+set arrow 2 from 0,0 to first 0, graph 1 filled head
+#
+# if arrows in both directions from the origin are wanted
+set arrow 3 from 0,0 to graph 0, first 0 filled head
+set arrow 4 from 0,0 to first 0, graph 0 filled head
+plot x^2
\ No newline at end of file
diff --git a/gnuplot/versuch02.gp b/gnuplot/versuch02.gp
new file mode 100644
index 0000000..3cde16a
--- /dev/null
+++ b/gnuplot/versuch02.gp
@@ -0,0 +1,18 @@
+et xzeroaxis
+set yzeroaxis
+set border 0          # remove frame
+set xtics axis        # place tics on axis rather than on border
+set ytics axis
+set ticscale 0        # [optional] labels only, no tics
+set xtics add ("" 0)  # suppress origin label that lies on top of axis
+set ytics add ("" 0)  # suppress origin label that lies on top of axis
+#
+# if arrows are wanted only in the positive direction
+set arrow 1 from 0,0 to graph 1, first 0 filled head
+set arrow 2 from 0,0 to first 0, graph 1 filled head
+#
+# if arrows in both directions from the origin are wanted
+set arrow 3 from 0,0 to graph 0, first 0 filled head
+set arrow 4 from 0,0 to first 0, graph 0 filled head
+
+plot f(x)
\ No newline at end of file
diff --git a/gnuplot/versuch03.gp b/gnuplot/versuch03.gp
new file mode 100644
index 0000000..2eacb80
--- /dev/null
+++ b/gnuplot/versuch03.gp
@@ -0,0 +1,62 @@
+#set term pngcairo truecolor size 300,300 font "Arial,12"
+
+set out 'plot.png'
+#https://stackoverflow.com/questions/12749661/how-to-move-axes-to-center-of-chart
+# x,y min/max and center
+xmin = -2
+xc = 0 
+xmax = 2
+ymin = -0.5
+yc = 0 
+ymax = 2 
+# default borders
+tm = 1 
+bm = 1 
+rm = 4 
+lm = 4 
+# arrow scale factor to cover last tic 
+af = 1.05
+set arrow from xc,yc to xmin*af,yc filled size 0.1,0.2.
+set arrow from xc,yc to xmax*af,yc filled size 0.1,0.2
+set arrow from xc,yc to xc,ymax*af filled size 0.1,0.2
+set arrow from xc,yc to xc,ymin*af filled size 0.1,0.2
+
+set multiplot layout 2,2
+## Plot 1, top left
+set key top left
+set xr [xmin:xc]
+set yr [yc:ymax]
+set tmargin tm
+set bmargin 0
+set rmargin 0
+set lmargin lm
+set border 9
+unset ytics
+set xtics nomirror
+plot x*x
+## Plot 2, top right
+unset key
+set xr [xc:xmax]
+set lmargin 0
+set rmargin rm
+set border 3
+set ytics nomirror
+replot
+## Plot 3, bottom left
+set xr [xmin:xc]
+set yr [ymin:yc]
+set bmargin bm
+set tmargin 0
+set lmargin lm
+set rmargin 0
+set border 12
+unset tics
+replot
+## Plot 4, bottom right
+set xr [xc:xmax]
+set lmargin 0
+set rmargin rm
+set border 6
+set ytics nomirror
+replot
+unset multiplot
\ No newline at end of file
diff --git a/gnuplot/versuch04.gp b/gnuplot/versuch04.gp
new file mode 100644
index 0000000..223bbbf
--- /dev/null
+++ b/gnuplot/versuch04.gp
@@ -0,0 +1,15 @@
+set xzeroaxis
+set xtics axis
+set xrange [-10:10]
+set arrow 1 from -9,0 to -10,0
+set arrow 2 from  9,0 to  10,0
+
+set yzeroaxis
+set ytics axis
+set yrange [-1:1]
+set arrow 3 from 0,-.9 to 0,-1
+set arrow 4 from 0,.9  to 0,1
+
+set border 0
+
+plot sin(x)
\ No newline at end of file