init

README.md

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-# rpn
-Reverse Polish Notation Calculator
+
+Reverse Polish Notation Calculator, version 1.00.
+Copyleft (L) 2019 - Thomas von Dein.
+Licensed under the terms of the GPL 3.0.
+
+Commandline: rpn [-d] [<operator>]
+
+If <operator> is provided, read numbers from STDIN,
+otherwise runs interactively.
+
+Available commands:
+c    clear stack
+s    show the stack
+d    toggle debugging (current setting: 0)
+r    reverse the stack (w/ reg if stack==1)
+u    undo last operation
+q    finish
+?    print help
+
+Available operators:
++    add
+-    substract
+/    divide
+*    multiply
+^    expotentiate
+%    percent
+&    bitwise AND
+|    bitwise OR
+x    bitwise XOR
+