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John Paul Cook

Logarithms and slide rules

As the parent of teenagers, I find myself needing examples to explain concepts such as logarithms. Visual aids help, and a slide rule was the perfect tool for showing that multiplication of two numbers can be accomplished by adding the logarithms of the numbers. Like so many other concepts, the implementation details were problematic. It took longer to find a slide rule than explain the concept! Finally, I found my father's slide rule (it said it was patented in 08) in a box and explained how to use the cursor on the slide rule to find the answer.
Published Monday, February 18, 2008 4:50 PM by John Paul Cook

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About John Paul Cook

John Paul Cook is a Data Platform Solution Architect working out of Microsoft's Houston office. Prior to joining Microsoft, he was a SQL Server MVP. He is experienced in SQL Server and Oracle database application design, development, and implementation. He has spoken at many conferences including Microsoft TechEd and the SQL PASS Summit. He has worked in oil and gas, financial, manufacturing, and healthcare industries. John is also a Registered Nurse who graduated from Vanderbilt University with a Master of Science in Nursing Informatics and is an active member of the Sigma Theta Tau nursing honor society. He volunteers as a nurse at a clinic that treats low income and uninsured patients. Contributing author to SQL Server MVP Deep Dives and SQL Server MVP Deep Dives Volume 2. Opinions expressed in John's blog are strictly his own and do not represent Microsoft in any way.

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