Chapter 24. Data Modeling and Curve Fits

Two main branches of science are experimental and theoretical. While the two parties don't always see eye-to-eye, there is a symbiotic relationship between them. The experimentalist is chiefly concerned with observation and measurement of physical phenomenon. The theoretician incorporates the experimental data into mathematical models to analyze situations for which no experimental data exists.

Experimental data, particularly when different measurement techniques and facilities are used, generally has some scatter to it. Even if scatter is minimal, the data may very well follow a nonlinear curve with respect to its independent variable. An engineer or scientific analyst usually requires an analytical expression ...

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