Hergert Numbers: January 2015

Thanks to Elizabeth Meena, we have a new Hergert Numbers logo item! This is the world's first Hergert Numbers bib. Now we just need a baby!!

How it all started

In the summer of 1994, I was teaching Calculus for the first time. When we got to the applications of derivatives, we talked about critical numbers being the potential relative extrema and identified them as points where f'(x)=0 or f'(x) is undefined. In the very next section, we came across possible inflection points that consisted of points where f"(x)=0 or f"(x) is undefined. I was surprised to see that there was no name for these points. So, I began calling them Hergert Numbers. In the years that followed, I taught the course many, many times. Each semester I would refer to these points as the Hergert Numbers, yet the term just didn't seem to be catching on - until now.

Hergert Numbers

Saturday, January 3, 2015

Hergert Numbers Bib!

How it all started

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