I am uploading three files. They all do the same thing with slightly different datasets. files 29 and 27 obtain rasonable solutions, but 24 does not.

Could you help me figure out what the problem is and how such problems can be identified -- so that I can make the necessary changes to them.

I have the same problem with other datasets.

Thanks.

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Hello.

Does anybody know how precise the eigenvalues (or the eigenvectors) of some Matrix are (when I use Eigenvalues(Matrix))?

Let's assume Digits=15. Can I have any certainty that the computed eigenvalues are precise to some (15??) digits?

I don't know how Maple computes them but if I suppose several (many) arithmetic operations then the error can move "upward".

Am I wrong? Thank you for all your suggestions.

>P := array(1 .. 51, 1 .. 3); >y := (-1)*0.6e-1*(arctan(10*s/1.3+(-10)*.3)/Pi+1/2)*cos(6*Pi*s/1.3); >for i from 1 to 51 do p[i, 2] = y(0.26e-1*i; od; / 1.227772386 1\ p[1, 2] = -0.06 |- ----------- + -| cos(0.1200000000 Pi) \ Pi 2/ / 1.203622493 1\ p[2, 2] = -0.06 |- ----------- + -| cos(0.2400000000 Pi) \ Pi 2/

how do I solve

x/(x-3) = y/(y-5)

manually?

Here's another really basic question.  Its about using suboptions.  The MAPLE help file gives the following info:

legendstyle=s

 

 

 

 

 

 

Hi.

 

I am trying to evaluate:

sin(pi*n)/(pi*n) assuming n::integer

Maple returns 0.

It seems to me that it really should not evaluate since it does not know if n=0 (where the correct result is 1) or not.

If it does evaluate, it should evaluate to a dirac function at n=0.

 

Regards.

 

 

 

 

Greetings all I know I can get the odd numbers and even numbers using the following command

oddnum := seq(2*j+1, j = 0 .. 13);

1,3,5,7,9,.....

evennum := seq(2*j, j = 0 .. 13);

0,2,4,6,8,......

How do I change the font on the labels of the horizontal axis of a plot ( I am not using the Interasctive Plot Builder)?

 

Thanks

<p><span><a href="http://mapleoracles.maplesoft.com:8080/maplenet/primes/worksheet/2031_29.mw">View 2031_29.mw on MapleNet</a> or <a href="http://beta.mapleprimes.com/files/2031_29.mw">Download 2031_29.mw</a><br />
<a href="http://beta.mapleprimes.com/viewfile/2575">View file details</a></span><span><a href="http://mapleoracles.maplesoft.com:8080/maplenet/primes/worksheet/2031_27.mw">View 2031_27.mw on MapleNet</a> or <a href="http://beta.mapleprimes.com/files/2031_27.mw">Download 2031_27.mw</a>

hi all,

 

i have 10 question out of like a billion, that i am unable to do and would appreciate if someone was able to send me the maple coding they put in into classic worksheet format.

 

File is below.

 

 Download 8646_sample1.pdf
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> R := 0.6e-1*(arctan(10*s/1.3+(-10)*.3)/Pi+1/2) / /10 s \ \ |arctan|---- + (-10) 0.3| | | \1.3 / 1| s -> 0.06 |------------------------ + -| \ Pi 2/ > y := -R(s)*cos(6*Pi*s/1.3) > y(0.26); ???what can I do to get the result of y,when s=0.026 Need help from anyone! Thank you! liu

I have the following situation (related to the design of steel structures). Using Maple you compute for a given loading the minimum required section modulus (a cross-sectional property). With that value you enter the section data base (an EXCEL spreadsheet) find all candidate sections whose modulus equals or exceeds the minimum and select the correct one based on some criteria (e.g., weight which is also included in the spreadsheet). Right now this is done manually. Any way to have MAPLE do that for me?

thanks

dimitrios karamanlidis

View 285_Stat Mech Integral.mw on MapleNet or Download 285_Stat Mech Integral.mw
View file details

 

Can someone help me evaluate the last integral?

 

thanks,

v/r,

Problem: find the length of the curve y=(x/2)^{3/2}. Using VectorCalculus Maple11 says

For the polar equation, r = 2 sin(theta), will some kind soul please give me the syntax for a parametrized plot?

     polarplot (   [    ,      ,     ] )

Alla