diff --git a/DIV_01.png b/DIV_01.png
new file mode 100644
index 0000000000000000000000000000000000000000..b1883aed0809c8fd94b29d7ab8d09802326af360
Binary files /dev/null and b/DIV_01.png differ
diff --git a/DIV_02.png b/DIV_02.png
new file mode 100644
index 0000000000000000000000000000000000000000..965f97f07e19133c766776b1fe2c2a5fdd21a3d4
Binary files /dev/null and b/DIV_02.png differ
diff --git a/DIV_03.png b/DIV_03.png
new file mode 100644
index 0000000000000000000000000000000000000000..8d34f05ca42520e7e14d27ecb72a916c17dd65e4
Binary files /dev/null and b/DIV_03.png differ
diff --git a/speed-experiment.png b/speed-experiment.png
new file mode 100644
index 0000000000000000000000000000000000000000..7240bc7aa4cdd74aef5599e85de1db2957ba8d01
Binary files /dev/null and b/speed-experiment.png differ