Mohammad Hassan Damyad - Department of Industrial engineering, Parand Branch, Islamic Azad University, Parand, Iran
Davoud Jafari - Department of Industrial engineering, Parand Branch, Islamic Azad University, Parand, Iran
Hamed Kazemipour - Department of Industrial engineering, Parand Branch, Islamic Azad University, Parand, Iran

this research seeks to provide a mathematical model for a trihedralinventory control system. This three-level chain, including manufacturing,warehouse and seller. In situations where a specific product is producedunder inflation and the impact of inflation with exponential function is on theprice of units. also in this model demand rate, production rate and LeadTime are constant. In this model, shortage is non-allowed. With thesehypotheses obtains total cost function and determine limitations each of thedecision variables then determine optimal order point by using MATLABsoftware .

Inventory control,trihedral, Non-Allowedshortage, ordereconomic size,inflation, supply chain,MATLAB software