Why do we Need a Mathematical Model - NC State University
Why do we Need a Mathematical Model?
SAMSI/CRSC Undergraduate Workshop 2006
Moustapha Pemy
1. The Reality, the experiment and the model.
Let us denote by ytrue the true displacement of the beam, ydata the data collected in the lab, and y the solution of the beam model.
1. The Reality, the experiment and the model.
Let us denote by ytrue the true displacement of the beam, ydata the data collected in the lab, and y the solution of the beam model.
Question: ? Is it always possible to find a mathematical
formula to express ytrue as function of time?
1.The Reality, the experiment and the model.
1. Let us denote by ytrue the true displacement of the beam, ydata the data collected in the lab, and y the solution of the beam model.
Question: ? Is it always possible to find a mathematical
formula to express ytrue as function of time? ? How can we compare ytrue and ydata ? ? How can we compare ytrue and y ? ? How can we compare ydata and y ?
The Reality, the experiment and the model.
1. Answer:
? It is not always possible to find a mathematical expression of the reality.
? Due to measurement errors the data collected always differ from the reality.
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