Hello,

I have 4 points in 2D and I want to plot them with different colors:

This works in Maple 12:

plots[pointplot]([1,2,3,4],[5,4,7,8],color=["Red","Blue","Magenta","Pink"]);
 

And I want to connect each other with line segments:

But this doesn't work:

plots[pointplot]([1,2,3,4],[5,4,7,8],color=["Red","Blue","Magenta","Pink"],connect=true);

Error, (in plots/pointplot) number of colors must match number of points
 

I wanted to try this example of Maple's help, but it gives an error message:

restart;

with(algcurves);

f := y^2-x*(x^2-1);

plot_real_curve(f, x, y, showArrows = true);


Error, (in algcurves/CurvePlot:-PlotRealCurve) too many levels of recursion

Some years ago I have read about the method of Determinant Decision Diagrams. With this method one can analyze relatively large electrical circuits symbolically (for example opamp uA741 as a benchmark) . The authors wrote they had implemented the algorithm in Maple. I wonder if anybody read about this or tried to implement this algorithm. It would be nice to have this capability in Maple.

Here is a link:

http://portal.acm.org/citation.cfm?id=266510

Hello,

I am trying to change the variable in an integral and I have two problems with it:

My first problem is that I can't get the integrand of the new integral with GetIntegrand when I use IntegrationTools[Change] :

restart;

a1:=Int(1/(2*A),x=-A..A);

D1:=IntegrationTools[Change](a1,x=20*log[10](u));

Hello,

I have an expression:

y:=a*10^(x/20)+b*10^(x/10);

(x is real here)

I 'd like to write this epxression in the form of y=a*K+b*K^(2) with Maple using 10^(x/20)=K substitution.

I have tried it with subs and algsubs but they don't work here for me.

(Originally I had a more complicated expression of this type).

Thanks for your help in advance.