... canvas1
A blank area of a window used for constructing diagrams. 
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... executes2
If you are familiar with the Yourdon-de Marco Structured Systems Analysis technique, or other similar methods, you will recognise that DX networks are very similar to the data flow diagrams used in these techniques. 
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... display3
For example, with a black and white display the various icons for modules in the visual programming editor are only partly visible. 
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... keyword4
Strictly speaking it should be possible to input any unformatted file written in IEEE floating point format, irrespective of the type of machine that it was written on. Note, however, that Digital VAXen and IBM mainframes do not use IEEE floating point format. 
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... iso-surface5
An iso-surface is the analogue in three-dimensional gridded data of a single contour in two-dimensional gridded data. That is, it is a surface defined by some constant value of the dependent variable. 
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... iso-surface6
An iso-surface is the analogue in three-dimensional gridded data of a single contour in two-dimensional gridded data. That is, it is a surface defined by some constant value of the dependent variable. 
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... files7
It is also, of course, possible to input files written in a wide variety of other formats; see Sections [*] and [*] for some examples. 
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... field8
This usage of the term `field' corresponds to its usual meaning in physics rather than in computing. For example, a DX field may represent a three-dimensional grid holding a set of samples of the velocity field throughout some volume. This usage is quite different from the usual meaning in computing: a predetermined section of a record allocated to the storage of a particular data item. Anyone used to the computing terminology should particularly beware of this different usage. 
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... array9
Strictly speaking this array, and other arrays in components, are themselves DX objects of type array. However, this complication is not important to the present discussion and it is adequate to think of the component as simply an array of numbers. 
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