brownr

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12 years, 255 days

MaplePrimes Activity


These are replies submitted by brownr

As far as I'm aware, Maple doesn't handle asymmetric tolerances as part of the tolerance package.

@Maple_Asker As suggested by Markiyan, check your formulation. Ensure all equations are consistent, and completely defined. Are you missing a necessary equation?

@acer

I really appreciate the effort you spent determining how to patch it. It seems to work in Maple 2015 and 17.

Thanks again,

Ron  

Mr. Elbanhawy I read several of your papers and application notes and I found them very useful. I also use maple in my work as well as excel and completely agree with your experiences regarding the use of Excel in engineering caclulations.

@Samir Khan 

This data was indeed captured from an oscilloscope. This oscilloscope only offers two file formats for saving data. *.csv and *.isf. The ISF is a binary based format used by the manufacture (Tektronix). Its file structure is:

:WFMPRE:BYT_NR 2;BIT_NR 16;ENCDG BIN;BN_FMT RI;BYT_OR MSB;NR_PT 10000;WFID "Ch1, DC coupling, 2.0E0 V/div, 1.0E-5 s/div, 10000 points, Sample mode";PT_FMT Y;XINCR 1.0E-8;PT_OFF 0;XZERO 3.5E-4;XUNIT "s";YMULT 3.125E-4;YZERO 0.0E0;YOFF 0.0E0;YUNIT "V";:CURVE #520000<binary data>

I will need to investigate / test this format to see if compatible with the FileTools[Binary] function and get back to you. I assume the header information will also need stripped based on the help page.

Thank you for the suggestion,

RB

@DSkoog

Yes your assumption of floating point data is correct and thank you for the work around, the export performance is greatly improved.

@rightClick 

 

I work with 50MB files on a regular basis in maple. However, the dataset that is giving me issues is an order of magnitude larger (10^7 x 14) ~500MB. I don’t use Maple TA web based testing suite, but I’m sure that maple isn’t restricted to 5MB file sizes.  

 

For the moment, I’m using matlab to analyze my data; however I’m looking for advice on other methods of importing this data into maple.

 

Thank you for your interest,

RB

Trend Micro shows mapleprimes as a safe site but not for maplesoft.com. Symantec shows both sites as safe.

I tried to visit Maplesoft’s website on my work PC and Trend Micro informed that this website is dangerous. My company’s IT department to have to request a whitelist reclassification from Trend Micro as I don't own the license, but it’s likely quicker to have a representative from Maplesoft make the request.

 

 

 

 

 

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