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Differentiate macro command |
  
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Differentiate macro command |
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Macro commands may be used either in macros or by sending the commands to DPlot via dynamic data exchange (DDE). Some commands are valid only in macros (noted by Macros Only). Commands sent to DPlot via DDE must be enclosed by square brackets [ ]. Macro commands should not include the brackets.
Command parameters shown in the descriptions below are placeholders for the actual values. Command parameters are either numeric values or character strings; character string parameters are always bound by double quotation marks.
All indices into arrays are 1-based, e.g. Curve1=1 refers to the first curve in a plot.
A 0x prefix for numbers in the descriptions below indicates hexadecimal notation; e.g. 0x0010 = 16.
JR/Viewer indicates that the command is supported by DPlot Jr or DPlot Viewer.
JR/Viewer indicates that the command is NOT supported by DPlot Jr or DPlot Viewer.
[Differentiate()] |
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Differentiates (finds ∂y/∂x) the curve or curves selected with the SelectCurve command. If the ordinate of the curve is evenly spaced, quadratic interpolation is used to find the derivative at each point. Otherwise an inverse of the trapezoidal rule is used. For more information see the Differentiate menu command.
Page url: http://www.dplot.com/help/index.htm?differentiatecommand.htm