rcalc is a programmable polish notation calculator. This means that the operator
is written before the terms. For example,
(+ 2 2) is equal to 4, and (+ 2 3 (/ 10 2)) is equal to 10. The regular notation
for these kinds of expressions is called infix, and these would be respectively
written as 2 + 2 and 2 + 3 + 10 / 2.
This is being written with the nightly version of rust, so if you're using an older version, you may not be able to compile it.
In order to build it, ensure that you have downloaded or built the latest nightly version of rust, the development headers for readline if you use linux, make sure you have the development headers for readline. Then run
cargo build
Ignore the errors for now. Until I can figure out what I'm doing wrong, just use it to build the library for rust-image (or install it some other way that you can link against it), and copy or move the library it builds to src/lib. Then run
make
To run rcalc, just use
bin/rcalc
This will compile a binary file called rcalc.
As far as I'm concerned, this is 1.0 now. I've got plans in the future for rcalc, but this is going to go into maintenance mode for a little while. I'll continue to keep up (or try to) with the latest rust nightlies, but I'm not going to actively develop this for a while.
(List not necessarily complete)
- Graphing
- Arbitrary precision numbers
- Trigonometric functions
- Rational exponentiation
- Matrices: dot product, inversion, determinants, translations. Code present but not integrated yet for minors.
- Boolean values, conditional statements and short circuiting operators
- Comparisons for ordering and equality
- Lists, constructing and destructuring, map, reduce, filter and sort
- User define variables and functions
- Functions are first class, and recursion is possible.
- Anonymous functions can be used as arguments in lieu of named functions
- There is a table function which will print the result of a function applied to each element in a list. See link below for screenshots of it in action.
http://www.librehumanitas.org/images/fib.png
http://www.librehumanitas.org/images/phi.png
