All Questions
Tagged with parsingmath-expression-eval
47 questions
3votes
1answer
71views
Advanced String Calculator with asin, acos, atan Functions in C++
This is a follow-up question for Advanced String Calculator in C++. Considering the suggestions mentioned in MrBean Bremen's answer, I am trying to update the implementation as below. The experimental ...
- 7,068
3votes
1answer
173views
Advanced String Calculator in C++
This is a follow-up question for String Calculator in C++. Considering the suggestions mentioned in MrBean Bremen's answer and Martin York's answer. I am trying to modify the code and trying to ...
- 7,068
4votes
2answers
241views
String Calculator in C++
As a coding exercise, I am trying to implement a calculator which takes string as input, with addition (+), subtraction (-), multiplication (*), division (/) and power (^) functions. For example, ...
- 7,068
2votes
1answer
200views
Evaluate a prefix expression
The algorithm involves using two stacks. One stack (call it token_stack) holds the operators (like +, - etc) and operands (like 3,4 etc) and the other stack (call it count_stack) holds the number of ...
- 10.1k
2votes
2answers
121views
Evaluating Polish Prefix Notation and Polish Postfix Notation
In Polish postfix notation, the operators follow their operands. For example, to add 3 and 4 together, the expression is 3 4 + rather than 3 + 4. The conventional notation expression 3 − 4 + 5 becomes ...
- 10.1k
3votes
3answers
707views
Command line calculator in C
This code is an arithmetic parser as is the code in a previous question of mine. However this parser handles floating point arguments and mathematical functions, and handles them without needing to ...
- 1,405
8votes
1answer
2kviews
Mathematical expression evaluator (C++)
I'm new to C++ and I decided to experiment with the language, by writing a mathematical expression evaluator, using the Shunting-Yard algorithm. A design choice that may stand out as weird is the fact ...
1vote
1answer
89views
Function to perform a logical NOT in a string
I am using "tinyexpr", a cute library that can solve mathematical formulas in a string and I extended it such that it does logical operations with two operands as well. However I wasn't sure ...
- 1,578
2votes
2answers
288views
A postfix (a.k.a. Reverse-Polish Notation - RPN) calculator
As an exercise, I put together a postfix calculator using modern Fortran. Language apart, I am interested in knowing your take on the algorithm. As far as I remember from my freshman year (chemistry - ...
- 302
5votes
2answers
392views
Evaluating arithmetic expressions and plotting graphs
I just got started with Python. I created some code, and I want to know what more experienced devs think about it. What can I do better? What to avoid? ...
- 55
3votes
1answer
956views
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: ...
5votes
1answer
532views
Recursive descent parser for simple arithmetic expressions grammar
What I'd like to see in your review, in order of relevance: Is there any bugs? (I see none, but...) Is the code efficient? (by whatever metric you'd like to use) Is the code easy to understand? ...
- 1,053
6votes
1answer
8kviews
Use Infix expression to construct a binary expression tree
Problem statement Construct a binary expression using infix expression. The infix expression uses extra parenthesis to enforce the priority of operators. For example, infix expression ...
- 2,416
6votes
1answer
443views
String to token vector for expression parsing
My objective is to create a linear algebra calculator that would be able calculate expressions containing vectors, matrices, (eventually complex numbers/imaginary; quaternions), and real numbers. I've ...
- 133
6votes
3answers
1kviews
Simple parenthesis removal - JavaScript
I solved the following problem: You will be given a mathematical string and your task will be to remove all braces as follows: ...
- 323
