diff --git a/README.md b/README.md
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index 0000000..a831ddd
--- /dev/null
+++ b/README.md
@@ -0,0 +1,15 @@
+To do:
+
+- [ ] Write README
+- [ ] Add show more info version
+- [ ] Add division?
+- [ ] Read from file?
+- [ ] Save to file?
+- [ ] Program into a small device, like a calculator?
+- [ ] Allow comments?
+  - Use a sed filter? 
+
+
+go run main.go < model.f
+sed 's|//||' model.f | go run main.go
+
diff --git a/f.sh b/f.sh
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--- /dev/null
+++ b/f.sh
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+#!/bin/bash
+#while IFS= read -r line; do echo "$line" | sed 's| //.*||' | go run main.go
+
+# while IFS= read -r line; do echo "$line" | sed 's|//.*||'; done | go run main.go
+
+
+sed -u 's|//.*||' | go run main.go
+# ^ sed unbuffered.
+# cat | tee -a log.f | sed -u 's|//.*||' | go run main.go | tee -a log.f
diff --git a/log.f b/log.f
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--- /dev/null
+++ b/log.f
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+1 10
+=> 1.0 10.0
+1 100
+=> 2.4 415.0
+1 100 // 
+=> 1.0 100.0
+1 10 // hello world
+=> 2.4 415.0
diff --git a/model.f b/model.f
new file mode 100644
index 0000000..cdc8a99
--- /dev/null
+++ b/model.f
@@ -0,0 +1,2 @@
+1 10 
+2 20