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Trying to Understand the Limitations of `Solve`

James Bowery
Posted 10 months ago

Note the {} is the result of Solve.

This isn't so much a question about my specific use of Solve as it is a question about how I can go about discovering for myself what I did wrong. For example, is there a way to use Evaluation->Debugger to debug my particular application of Solve and/or is there a Beginners Guide To Using Solve so as to avoid its limitations?
POSTED BY: James Bowery
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With a full list of unknons it gives an answer:

Solve[{ChlorineMassProducedPerLength == 
   ChlorineProducedPerEdenCreteMass*EdenCreteMassPerLength, 
  ChlorineMassConsumedPerLength == 
   ChlorineConsumedPerCPVCMass*CPVCMassPerLength, 
  ChlorineMassProducedPerLength == ChlorineMassConsumedPerLength, 
  MaterialVolumePerLength == 
   EdenCreteVolumePerLength + 
    CPVCVolumePerLength}, {EdenCreteMassPerLength, CPVCMassPerLength, 
  ChlorineMassProducedPerLength, ChlorineMassConsumedPerLength}]

Without giving any unknown, the output is very bizarre:

Solve[{ChlorineMassProducedPerLength == 
   ChlorineProducedPerEdenCreteMass*EdenCreteMassPerLength, 
  ChlorineMassConsumedPerLength == 
   ChlorineConsumedPerCPVCMass*CPVCMassPerLength, 
  ChlorineMassProducedPerLength == ChlorineMassConsumedPerLength, 
  MaterialVolumePerLength == 
   EdenCreteVolumePerLength + CPVCVolumePerLength}]
POSTED BY: Gianluca Gorni
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