An equation grapher. Built-in project manager for drawing multiple graphs. Calculate and display integrals. Calculate curve angles. Find X-values from Y values. Built-in calculator.Save as BMP, WMF or copy to clipboard as BMP Graph and environment information. Set up colors, line thickness, grid, grid spacing, numbers on grid, number of decimals shown.Graph resolution 50-5000 points. Remember position, size and grid size. On-line help.