What is ExtCalc?
Well, how to begin?
The first reason for creating ExtCalc was the absence of free software for sophisticated (or extended)
kinds of mathematics.
Please do not laugh, ExtCalc has not attained its goal, I know that.
But ExtCalc is already useful!
It supports reading (binary) basic arithmetical operations from its internal command line (using GNU Readline) or a
Soon ExtCalc will have a parser generated by GNU Bison which will make possible simple commands.
By the way: GNU BC is no real competition. It has other goals!