wswain

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12 years, 130 days

MaplePrimes Activity


These are questions asked by wswain

This has always made me wonder everytime I type it.

The first command I always type on a new worksheet is restart.  I don't think I have never done this. 

Is there a reason it needs to be manually entered and how many people DO NOT start a worksheet with a restart?   

Is there a reason to not make this automatic with initial loading of a worksheet?
 

Thanks,

Bill

Can anyone assist with Heat Map plotting questions?

 

I am interested in specifically formating axis.  i.e., can an axis be labels such as RPM range text =  "0-100, 101-200, 201-300", etc.  for each bin and rotated vertical to fit.   I tried most of the plot options with no success including labeldirections=[x, y].

Also, can I invert the data so the 1,1 bin is lower left corner vs upper left? tried to reverse the indices and errored with "inverted index" without resolution.

 

Lastly, I noted that I couldn't stack a frame Text plot of same size by assigning a plot to a variable and using display to overlay them.   The heat map is always on top and transparency option doesn't let the text come through.   

 

Plt1 := HeatMap(Array3[2 .. 101, 2 .. 31], color = C_List, size = [750, 450], transparency = 0.5)

 

Thanks in advance,

Bill

 

 

 

Does anyone use a windows 10 code editor like, emacs, vim, or other with good textual layout, error and type checking? for building procedure files (libraries)?

 

I am using Maple2019.   I have been using a code region started in a worksheet and then exported to mpl file.   Not sure if I have really seen a debugger with breakpoints, step-in/step-out, type checking?   Am I just not looking in the right area?

 

Best practices from programmers of maple procedures appreciated.

Bill

 

Hello all,   Hope everyone is safe

Does anyone know why a vector of floats as the variable for SignalPlot returnes the error:

Error:  (in SignalProcessing:-SignalPlot) unable to store  ' " " ' when datatype = float[8] 

Accel3  is vector variable reporting back as  "57850 element Vector[column]"

 SampleRate:=50000.0

When called by SignalPlot?   

SignalPlot(Accel3, samplerate = SampleRate)

I have successfully used SignalPlot without a problem before.

Regards,

Bill

Does anyone use MTM toobox and why?

 

I discovered this through the eig help search and found the MATLAB format of [V, D] = eig(Matrix) for eigenvectors and eigenvalues as a single function call with output a nice shortcut vs two calls to LinearAlgebra[Eigenvalues], LinearAlegebra[Eigenvectors]

 

But, is the overhead and overmapping of standard maple functions worth it?   I find very little descriptions about the Maple Toolbox, specifically the MTM package.

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