**The dreaded Log-Log graph**

If you are a Science or Engineering student, it is highly likely that you may have come across the Log-Log graph at some point, either in a lab session or in a textbook. The unfortunate thing is that, none of my teachers bothered to explain about the graph. I think it might have looked trivial for them, but I took a considerable amount of time to decipher the graph. So I thought that it might be nice to explain it to others who might be in my position.

Take a look at the following sample graph.

- The first 10 points on the x axis corresponds to the first 10 natural numbers.
- The next 10 points corresponds to numbers from 20 to 100.
- The next 10 points correspond to numbers from 200 to 1000 and so on.

So why use a Log-Log graph?

With a Log-Log graph, we can plot data over a large range. Sometimes, the data is so widely spread, plotting in a normal graph paper may not make any sense at all. Here is an example of Log-Log graph.

A sample point – Take the case of Pb – a value of 1.2 is seen for muon momentum corresponding to 7 Mev/c