The best This is by far the best HPLC gradient optimization app on Google play. Get it for all your HPLC needs!
The Handy Gradient App is useful for everyone especially for the Architect, Technician, Technologist, Builder, Engineer, Student or DIY enthusiast who needs a quick calculator application to work out general falls and gradients for typical building or engineering tasks such as Drainage Falls, Ramps, Roof Timbers, Pavements, Roads, Footpaths. The app only requires the input of 2 known values and then automatically calculates the 3rd value providing the results in mm, gradient, percentage and degrees. Enter either the distance / length, the rise / fall, or the required gradient and the incomplete fields automatically complete. This free app compliments Archiapps current suite of architectural apps for the construction professional or novice.