7 months ago I want to create an app that will do the following: I want to be able to select certain variables from physics and retrieve any and all equations that contain the selected variables. I also want to be able to rearrange equations for desired variables to find. If there are multiple ways to find a variable, such as Force has different ways to describe it. I would also like it to have a hierarchical flow from basic SI units to special SI units to derived units. throatbeard 0 29