DensityPlot[f, x, xmin, xmax, y, ymin, ymax] makes a density plot of f as a function of x and y.
DensityPlot evaluates its arguments in a non-standard way (see Section A.4.2). You should use Evaluate to evaluate the function to be plotted if this can safely be done before specific numerical values are supplied.
DensityPlot has the same options as DensityGraphics, with the following additions:
DensityPlot has the default option setting Frame -> True.
DensityPlot returns a DensityGraphics object, with the MeshRange option set.