BrianB

2 years, 103 days


These are questions asked by BrianB

Hi

I have a problem with the fact that maple not always knows the difference between pi and -pi. Try for example these three lines:

> evalf((-5-2*I)*(exp(-(.999999999*I)*Pi))^(1/2-0.8e-1*I)); 

> evalf((-5-2*I)*(exp(-I*Pi))^(1/2-0.8e-1*I));

> evalf((-5-2*I)*(exp(I*Pi))^(1/2-0.8e-1*I));

They have significantly different results where the line with the exp( - I*Pi) is interpreted as exp(I*Pi).

Is there anyway to avoid this?

I use maple 13

Thanks in advance

Best regards
Brian

<p>Hi </p>
<p>I have some funtio<img alt="" src="file:///C:/Users/BrianBak/AppData/Local/Temp/moz-screenshot-5.png" />ns that a generate using maple. I would like to be able to set an variable equal to the right side of these functions in matlab. I have saved the funktion in the following way. </p>
<p><img alt="" src="file:///C:/Users/BrianBak/AppData/Local/Temp/moz-screenshot-6.png" /><img alt="" src="file:///C:/Users/BrianBak/AppData/Local/Temp/moz-screenshot-7.png" /><maple>with(CodeGeneration)</maple><br />
<maple>Matlab(x^2+y^3, output = "file.txt")</maple></p>

Hi

Does anyone know how to export surface plot with multible surfaces to a file format that can be easily plotted using matlab?

Thanks in advance

Regards Brian

Hi

I have some 3d plots with colors that I would like to export to a vector format such as eps or ps. At the end I will use it as a eps picture in a latex document so if it is possible to export directly to vectorized eps.

I have tried to used to export feature but this simply export it to something that look like a very hard compressed jpeg picture.

Does anyone know how to do this?

 

Thanks in advance

Regards Brian

Hi

I have a problem with an assumed real variable that are not inserted into equations if it is given an nummeric value. I have tried to make and example below:

> restart;
> with(plottools);
> with(linalg);
>with(plots);
> assume(theta, real);

>A := e^(I*theta)

Hi

I have some calculations/results which I use in many other documents. Is there anyway to link to this document that contains results I need for another sheet in the beginning of the sheet I need the calculations for?

 

Thanks in advance

Regards Brian

Hi

I have an old maple document written as 1-D math input. In order to make the document more clear I used the convert to 2-D math input funtion.

The following expression containing a unknown function phi[0] and a guess on this function has both been converted to 2-D math input.

U0:=1/2/mu*exp(-I*theta)*(kappa*phi[0](z)-z*conjugate(diff(phi[0](z),z))-conjugate(psi[0](z)));

phi[1](z) := A[1]*z^(lambda+I*epsilon)+B[1]*z^(lambda-I*epsilon);

Hi

I have som 2D and 3D plots where I would like to change some parameters/constants interactively so that the plot updates automaticly.

I expect that some sort of scroll bar could be used to change a constant interactivly but I need a little help for what it is called in maple and a hint for how it is programmed.

Thanks in advance

regards Brian

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