Interpolation procedure in C++

Hello All! I need a logarithmic interpolation procedure in C++. I've found http://cs.stackexchange.com/questions/25945/how-to-logarithmic-interpolation but I can't understand how to implement this via C++-code. I even don't understand what is it? Here in list of interpolation procedure example there is no such approach?

Any help is appreciated! Thanks!

Hi! A logarithmic scale simply means that values are not plotted at their "appropriate" location, but at a location proportional to the logarithm of their value.

You can find example here

Thank you, Mxyzptlk! That is exacly what I needed!