gkokovidis

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20 years, 289 days
Draeger Medical Systems, Inc.

 

 

Regards,
Georgios Kokovidis
Dräger Medical

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These are replies submitted by gkokovidis

Take a look at some of the apps in the Maple Application Center. You have to register to download the files. The link below takes you to the Statistics & Data Analysis : Maple Maps section. http://www.maplesoft.com/applications/app_center_browse.aspx?CID=10&SCID=79 Regards, Georgios Kokovidis
Me too, and I'm willing to pay for it, although it should come as part of the package. I get one with Matlab, so why not with Maple? Regards, Georgios Kokovidis Dräger Medical
I can't tell from your input above what you are trying to do with the "and" because it is not in your statement. Try the code below. Change the value of 'a' from 2 to 3 and see if the result is what you expect. > restart: > a:=2; a := 2 > b:=6; b := 6 > if a=2 and b=6 then z=10 else false fi; z = 10 Regards, Georgios Kokovidis
Changing Digits alters the error tolerance. Other methods might be more efficient for evaluating the errors. The file is attached below. Classis interface Maple 10.06 used. > restart:Digits:=10: > x:=array([1,1,1,1,1,1,1,1,1,1,-1,-1,-1,-1,-1,-1]); x := [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, -1] > y:=array([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]); y := [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] > FFT(4,x,y); 16 > print(x); > print(y); > real_imag:=zip((a,b)->a+b*I, x, y); > convert(real_imag,list); > iFFT(4,x,y); 16 > print(x); > print(y); Download 221_fft_precision_example.mws
View file details Regards, Georgios Kokovidis Dräger Medical
The link above to the worksheet does not work if you have Classis Worksheet interface associated with .mws files because of the space in the file name after the lower case g in Testing. It opens in Maple 10 just fine. I have Maple 10 associated with .mw files. Just in case others have tried to open the file with Classic and failed. Rename to 3175_TestingH0.mws or anything without spaces in order to open in Classic Worksheet. I looked at it but have not been able to do anything with it just yet. Regards, Georgios Kokovidis
Use the "parse" command. See ?parse for more help. >restart: >L:=["2", "abcde"]; >(parse(L[1]))/4.0; parse(L[1]) by itself will take "2" and return 2. Regards, Georgios Kokovidis
The link below has a pdf file that might be of use to you. http://www.gatewaycoalition.org/files/Maple.pdf Regards, Georgios Kokovidis
I tried your code above using the Classis Interface, with and without the semicolon on the last line, and I did not receive any warning messages. I am assuming that you put it there so you do not see the long list of output that is generated. Either way, the problem seems to be related to the Maple 10 interface. Classis 10 does not give warnings for this. Using Maple 10 I was able to recreate the warning message. Restarting Maple 10 and executing the code above with a semicolon at the end worked without a warning message. The input mode I used in Maple 10 was Maple Input, not 2D input. Hope this helps, even though I did not answer your question as to why is happens. Regards, Georgios Kokovidis
Greetings. Is there a spredsheet for Maple 11 that lists the operating systems that are supported. Any information pertaining to multiple processor support, specifically quad core workstations running WinXP 64. Any info would be appreciated. Regards, Georgios Kokovidis Dräger Medical
Greetings Axel. What am I missing here? Just plugging in the numbers, I do see somewhat of an equivalence after Maple simplifies internally. If I multiply the second result by I and drop the "small" or "negligible" real part, the answers start to look alike. What exactly are you looking for? Excuse my lack of mathematical rigor here. > restart:Digits=20: > evalhf(-2.5^(-1.5)); -0.252982212799999995 > evalhf(exp(-1.5*ln(-2.5))); -9 0.155662521299999988 10 + 0.252982212799999995 I Regards, Georgios Kokovidis
See this link, page 9. Shift+Ctrl+R to rotate all the pages when it opens up. You should be able to replicate this in Maple fairly easily. Regards, Georgios Kokovidis
Some code to visualize the cube and drills. No attempt to derive the volume. First parameterize the circle x^2+y^2=1 as x=cos(u) and y=sin(u) with u ranging from 0..2*Pi, then plot. You can change the order for cos(u),v, and sin(u) and add a drill_c to see all three if you like. >restart:with(plots):with(plottools): >drill_a:=plot3d([cos(u),sin(u),v],u=0..2*Pi,v=-4..4,color=red,style=patch): >drill_b:=plot3d([cos(u),v,sin(u)],u=0..2*Pi,v=-4..4,color=green,style=patch): >cube:=(hexahedron([0,0,0],2),color=blue,style=contour): >display(drill_a,drill_b,cube,scaling=constrained); Regards, Georgios Kokovidis
If you are going to use Word, you can export to rft from the export menu and then open it in Word directly. Regards, Georgios Kokovidis
Try the link below if you are using a Windows machine. http://sourceforge.net/projects/pdfcreator/ Regards, Georgios Kokovidis Dräger Medical
I kind of like this one as well. Georgios Kokovidis
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