All Questions
Tagged with math-expression-eval haskell
8 questions
6
votes
1
answer
2k
views
Writing monadic Haskell to evaluate arithmetic expression
I have been studying Haskell by myself for about a little over a year. And I have been stuck at monad/monad transformers for quite a while until recently some examples I read online enlightened me. So ...
- 327
3
votes
1
answer
970
views
Infix to postfix notation in Haskell (Shunting-yard algorithm)
I've written an infix to postfix converter in Haskell using the Shunting-yard algorithm. Example of how it works:
...
- 327
1
vote
1
answer
659
views
Reverse Polish Notation evaluator in Haskell
I've created an RPN evaluator in Haskell, as an exercise because I'm new to this language.
It runs well:
$ ./rpn
2 3 4 5 + - +
-4
And the source code:
...
- 327
3
votes
2
answers
985
views
CodeWars - Three-pass compiler for arithmetic expressions
I'm looking for feedback on my solution to the Tiny Three-Pass Compiler kata on CodeWars. The kata is to implement a compiler for an arithmetic language in three passes - parsing to an AST, constant ...
- 193
6
votes
1
answer
413
views
Data structure for expression evaluation in Haskell
I've made a data structure for mathematical expressions. I want to parse mathematical expressions like:
\$x = 3\$
\$y = 4\$
\$z = x + y :\$
into an evaluated document like:
\$x = 3\$
\$y = 4\$
\$z = x ...
- 163
4
votes
3
answers
1k
views
Math eval function for Haskell
I recently finished reading Learn you a Haskell for great good!. Even though some topics are a bit over my head (Monads anyone?), I wanted to try my hand at a ...
- 1,810
4
votes
1
answer
226
views
Safe Reverse Polish Notation
I implemented the following (what I believe to be) safe Reverse Polish Calculator.
Now I'm using foldM to take advantage of the power of Monads. Previously, I was ...
- 3,203
6
votes
1
answer
3k
views
Reverse Polish Notation Calculator
Working through Learn You a Haskell, I made a Reverse Polish Notation calculator.
Please critique it.
...
- 3,203