All the files are zip archives, produced using David Pillings SparkFS, and may be extracted using SparkPlug, Spark, or SparkFS.
| ChartDraw
Version 3.13, 6th May 2003 ChartDraw allows the production of a range of charts from data that can be entered and edited from the keyboard. The program plots simple line graphs, stacked and grouped barcharts and piecharts. The resulting graph may be printed via any standard RISC OS printer driver, or saved as a draw file.
You may download the following files, which are all zip archives.
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| FNPlotter
Version 1.03, 14 May 1996 This application is a front end for MultiPlot. It allows you to enter up to four functions, y=f(x), in BASIC format, and will then produce a file in the correct format for loading into MultiPlot. If MultiPlot is active at the same time as FNPlotter, then the data file is transferred transparently, using the Desktop message transfer facilities. It is therefore possible to overlay graphs of known functions with other data produced by e.g. GraphDraw.
You may download the following files, which are all zip archives.
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| Surface
Version 1.04, 5 May 2003 This application is a very simple 3D function (surface) plotter. It takes as input a text file containing the x, y, and z data for a function of the form z=f(x,y), and draws a 3D view of the function. This version is very dumb and does not allow any choice in how the graph is displayed. Better things will emerge in the course of time, I hope. Use e.g. 3DFnEdit to produce data files of BASIC type functions in the correct format for Surface to understand.
You may download the following files, which are all zip archives.
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| 3DFNEdit
Version 1.03, 19 May 2003 This application is a front end for either of the authors surface plotting applications, viz. Surface or 3DPlotter. It allows you to enter a function, z=f(x,y) in BASIC format, and will then produce a file in the correct format for loading into the actual surface plotting programs. If one of these programs is active at the same time as 3DFnEdit, then the data file is transferred transparently, using the Desktop message transfer facilities. The data files can also be saved in ASCII format.
You may download the following files, which are all zip archives.
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| Complete documentation
Version 1.00, 14 May 1996 A combined manual, covering all of the above applications, and also including the text>draw application has been produced, and makes use only of standard fonts. You may download the following files, which are all zip archives.
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