My unsung software hero is Dr. Jeffrey Lewis Fox (deceased in 1999 at age 51), Associate Professor, Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah <a href="http:&#x2F;&#x2F;pharmacy.utah.edu&#x2F;pharmaceutics&#x2F;news&#x2F;1999.html#fox" rel="nofollow">http:&#x2F;&#x2F;pharmacy.utah.edu&#x2F;pharmaceutics&#x2F;news&#x2F;1999.html#fox</a>  He wrote MINSQ (now called Scientist), the only piece of software I have ever fallen in love with. He sold the first version for $10 (if I recall correctly) in 1990. It was so user-friendly that I was using it within 10 mins to solve a system of differential equations that were part of my PhD research. (Unfortunately, I don&#x27;t find the more recent versions, &quot;updated&quot; by others, anywhere near as user-friendly.) He called his company, at the University of Utah, MicroMath. I assume he used the algorithms from &quot;Numerical Recipes&quot; to write MINSQ - I know that was the alternative facing me till his excellent software appeared. I really think the U of Utah should have kept the rights to the software and maintained it in his honour.