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On 08/09/2007 01:17 PM, Bernard Cleyet wrote:cut
the context of magnetic hysteresis, it is OK to say we are plotting B versus H, but strictly speaking B is not a function of H (nor vice versa).
http://www.irm.umn.edu/hg2m/hg2m_b/Image10.gif
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please explain.
Since you asked:
A function, by definition, is a set of ordered pairs such that
for each abscissa, there is only one ordinate.
That's the definition. The term is often abused, but that doesn't
change the definition. I do /not/ think we should be open-minded
about mutant definitions of this important term.
Example: The set {(1,1) (2,2) (3,1)} is a function.