As we’ve seen in the last several sections, things get complicated quickly when more than one or two channels are involved. Graph a couple of channels for multiple laps, and soon a standard graph gets quite cluttered and difficult to read. To remedy this, it’s often useful to combine two or more channels into a new channel by using a math channel. For example, we can combine speed and rpm to find out what gear the bike is in. Or we can manipulate the acceleration channels to quickly see where the rider is coasting or close to maximizing the available traction. Math channels can also be used to enhance a particular channel to easier see changes
This section details how to create a math channel and presents some typical examples, but they are just a brief sampling of what you can do with even the bare minimum of data at your disposal. For math channels related to GPS data, see the GPS Data Analysis page.