based on an earlier version of the Wolfram Language.
Building on Mathematica's unique base of visualization and graphics capabilities, Mathematica 7 adds several important new areas. Emphasizing integration and automation, Mathematica 7 introduces built-in vector visualization, automated dynamic charting, and fully general splines and NURBS.
StreamPlot — make a stream plot from a vector field function
VectorPlot — plot vectors from a vector field function
StreamDensityPlot — superimpose plots of vector and scalar field functions
DiscretePlot — plot discrete sequences specified by formulas
Palettes ► Chart Element Schemes — extensive styling options for charts
BezierCurve — 2D or 3D composite Bézier curves of any degree
BSplineCurve — 2D or 3D B-spline (NURBS) curves of any degree
BSplineSurface — B-spline (NURBS) surfaces of any degree