# Operations Research LP Solver

## Need some Linear Programming problems solved? Then this is for you and it's FREE

3.89 EDUCATION

Linear Programming (LP) is a mathematical modelling technique useful for allocation of limited resources such as material, machines etc to several competing activities such as projects, services etc. A typical linear programming problem consists of a linear objective function which is to be maximized or minimized subject to a finite number of linear constraints. (Wiki)

The application will do the following for now:
â€¢ v1.0 - 1.2
â€¢ Simplex (2 phase and Dual Simplex Included)
1. Minimization
2. Maximization

â€¢ More to come:
â€¢ IP (integer problems) Branch and bound
â€¢ Sensitivity Analysis
â€¢ Graphical Solution
â€¢ = Sign restrictions

Sign Restriction supported at the moment:
<= and >=

Potentially unlimited number of constraints to add!

The application works as follows, each LP equations is represented by either 2 key words "min" & "max" (min for minimization and max for maximization). Followed by the objective function variables with each of the variables separated by 1 space, at the end of each equation no need to add any spaces just a return is enough:

max 4 3 <- Obj
1 2 <= 40 <- Constraint 1
2 1 <= 60 <- Constraint 2

Another example with decimals.

min 15 10 20
0.10 0.20 0.67 >= 30
0.45 0.25 0.30 >= 40

Credits to: http://graphicloads.com/ For providing free icons!

Release: v1.3 *Bug Fixes* Release: v1.2 * Bug Fixes * Fixed an issue with devices running Android 6.0 LP Models are now saved so you can revisit them at any moment. All iterations are now displayed New Features: Advert Options in the settings page. Version 1.0 Initial Release of Linear Programming Solver Features: Simplex (Minimization & Maximization) Dual Simplex 2 Phase (Using Either Simplex or Dual) >= & <= Sign Restrictions Potentially unlimited number of constraints

### Details and Recent Ratings

Size: 2 MB
Version: 1.3 by wax911
Updated: 04 September 2016 (2348 days ago)
Released: 23 February 2016
Installations: more than 10 000
5 Stars: 25
4 Stars: 8
3 Stars: 3
2 Stars: 0
1 Star: 9

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