explicit formulations
pls tell me what is ment by implicit and explicit formulations.thanks Muhammad zubair asif

Re: explicit formulations
Assalam Alaykum wa Rahmatullah
implicit: For a given variable, the unknown value in each cell is computed using a relation that includes both existing and unknown values from neighboring cells. Therefore each unknown will appear in more than one equation in the system, and these equations must be solved simultaneously to give the unknown quantities. (By using TDMA or any other method) explicit: For a given variable, the unknown value in each cell is computed using a relation that includes only existing values. Therefore each unknown will appear in only one equation in the system and the equations for the unknown value in each cell can be solved one at a time to give the unknown quantities. Hope it would be helpful. Wasalam Mukkarum Hussain 
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