Or Simplex Step-by-Step Solver

OR Simplex Step-by-Step is a comprehensive Operations Research solver for students. Built and validated with professors at Kyiv Polytechnic University, it is used by students worldwide. EVERY METHOD YOU NEED - Simplex method: classical, Two-Phase, and Big-M - Integer programming: Branch and Bound - 2D graphical method: feasible region, objective line, and optimum - 3D polytope visualization for 3-variable linear programming: rotate and explore the feasible region - Sensitivity and post-optimal analysis: ranges, shadow prices, and RHS intervals - Transportation problem: North-West Corner, Least-Cost, and Vogel's Approximation (VAM) - MODI / U-V method: optimality test and refinement - Assignment problem: Hungarian algorithm - Job sequencing: 2, 3, and N machines using Johnson's algorithm WHY STUDENTS CHOOSE IT - Step-by-step explanations with every iteration described in plain language - Exact fraction arithmetic to avoid rounding errors - Dedicated math keyboard for fractions, signs, and decimals - Problem history to save, reopen, and edit past problems - 8 languages: English, Spanish, French, Portuguese, Russian, Ukrainian, Arabic, and Persian - No account required