Image caption, Architects have to understand gradient to work out the slope of a roof. There are rules and regulations for how steep a roof can be. For example, if the steepest incline allowed for ...

To calculate the gradient of this line using the formula, first pick two coordinates that lie on the line. Any two points can be chosen but for the example below the points (2,7) and (9,3 ...

For example, during Dpp signaling ... acting as activators and repressors appears to be consistent with other gradient-based signaling cascades, such as that for Hh in the fruit fly.