Is Pi Wrong?

Today, March 14 (or 3.14, if that helps make more sense), is π day—a celebration of the constant defined by the ratio of the circumference of a circle to its diameter, and promoted as a day for celebrating mathematics. But is π the wrong circle constant?

Simulation Quality Control

How do you know if the results of a simulation analysis are accurate and reliable?

This is an important and fundamental question. If a simulation produces invalid results, yet the client accepts and acts upon them, then they’re heading into a world of pain. Just as bad is the situation in which the results are valid, but are distrusted by the client and so are disregarded. In both cases, the outcomes can be catastrophic.