https://github.com/umstek/exsolver

Expression solver.
https://github.com/umstek/exsolver

calculator java mathematics

Last synced: about 17 hours ago
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Expression solver.

• Host: GitHub
• URL: https://github.com/umstek/exsolver
• Owner: umstek
• License: mit
• Created: 2014-08-27T03:03:05.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2023-12-15T02:37:27.000Z (11 months ago)
• Last Synced: 2024-04-14T11:34:33.702Z (7 months ago)
• Topics: calculator, java, mathematics
• Language: Java
• Size: 79.1 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# ExSolver

Expression solver.

Original Comments from 2013-12-28

mathex™ Solver.

mathex™ Solver simplifies any mathematical expression.

It can handle any number of nested brackets.

Variables which have their predefined values can be used in the expression.

Radix convertions from 2 to 36 including hexadecimal, octal and binary number systems are supported. 

Various functions including but not limited to sin(), cos(), ln() ... are supported.

I followed the rule "practice design, not decoration" rule to some extent.

Tried to simplify the GUI to make the software more user-friendly.

I used swing controls designing the GUI. 

Tooltips are used to guide the user to use the software. 

I used the html-like tag support for clarity.

Internally, I used a constructor which accepts the expression as a String and, a TreeMap of variables. 

I used a function called "selectAndSolve" which selects what operations to perform.

Being the main point of the program, it is recursively called by other parts of the program.

By doing so, I managed to decrease code redundancy. 

I divided the program into different parts. 

By using different methods for each of the operations, (one method for a operator and its opposite),

it was easy to maintain cohesion. 

Before doing the calculation, I used a method to make it cleaner 

(i.e.: removing whitespaces, adding operators where not given, remove repeated operators...). 

I commented when necessary, so I can easily maintain the code.