If you’re an engineer (like I used to be in a previous life), you have probably done your bit of experimenting. Usually, you then need a way to fit your measurement results with a curve. If you’re a proper engineer, you also have some idea what type of equation should theoretically fit your data.
Perhaps you did some measurements with results like this:
I’ve created an Excel file with which you can fit curves to your data, check out the article on my website:
Jan Karel Pieterse