static compile time table with floating point values

Question

Is it possible to generate an array at compile time, like in this nice answer of G. Fritzsche: Georg Fritzsche

but with floating point values?

Answer 1

It wasn't possible in standard-compliant C++ when Georg wrote his answer, but with C++11 we can now do compile-time computation with floating-point and other numeric types.

The trick is to use constexpr functions instead of non-type template parameters.