I am plotting flux values using contourplot3d. But I am only allowed to give two colors in contourplot3d option (eg. coloring=[red, blue]). This gives a contour plot that is a combination of these two colors.
eg.

But i want different colors to denote different flux ranges and so I need atleast 4 colors. Is there anything I can do?
Thanks

Hello, I have about 80 equations for x and 80 equations for y. They are called S_{x}_{_0} .. S_{x_80} for x and S_{y}_{_0} .. S_{y_80}. They all depend on parameter m.

I want to define a new piecewise function P such as,

P evaluated at m=i is equal to [ S_{x_floor(i)} evaluated at i , S_{y_floor(i)} evaluated at i ]

For example,

Hi

I want to derive an incompressible Navier Stokes equations with Maple for Conical Coordinate System.

In the beginning I'd like to derive NS equations in the Cartesian coord. system:

with(Student[VectorCalculus]):

V:=VectorField();

NS:=Diff(V,t)+DirectionalDiff((V . Del),V)=-Gradient(P)/ro+ni*Del . Del . V

Obviously something wrong with this writing.

Please help

Mark

Hi all,

I want to know how to represent a summation of the form:

and solve for x_{n}.

My reason is that I want to solve:for y_{n} where MU_{x} is the average for x ditto for MU_{y}.

Thanks!

i have a question with plotting
i have a vector X of length (10) and matrix U, that its size is (10,20),
how can i plot the vector X with each column in matrix U in the same figure ????????????????

Hello

I wonder how the following piecewise function can be plot in maple (showing the dirac function).

f := piecewise(t < 0, 0, and (t >= 0, t < 1), 1, and (t >= 1, t < 2), (-2+t)^2, t > 2, t = 4, Dirac(t-4))

plot(f,t=-10..10) does not show the dirac function.

Many thanks

Ed

PS. I saw a solution using op but I could not follow what was done.

Hello,

I have defined an expression f. This expression f, when integrated from 18 to b, is equal to 20. My goal is to find this b value. Since the integral is very hard to solve symbolically. This is what I did:

with(Student[Calculus1]);

ApproximateInt(f, t = 18 .. b, method = simpson);

by trying some random numbers v, I have found the approximate value of b.

I am trying to point plot
R:= .8*theta+.87 where theta starts from 160 degrees and goes till 330 degrees. I want to see points only at 160 degrees, 170 degrees, 180 degrees and so on till 330 degrees . It should be a polar plot.
If I use plot( .8*theta+.87, theta=(160/180)*Pi..(330/180)*Pi,coords=polar), I get a continuous line. I just need points.
thanks

April 03 2010
Maud 4
Hi everyone!

I have an urgent problem! I am dealing with an autonomous system of 2 differential equations.

First of all I have to plot the phase plane (x,y) but I'd like to include a constraint (x^2+y^2<1 )in my system and I don't know how to do that!

what I've done by now:

>dfieldplot([diff(x(N),N)=-3*x(N)+sqrt(6)*(y(N))^2+3/2*x(N)*((x(N))^2+1-(y(N))^2), diff(y(N),N)=-sqrt(6)*x(N)*y(N)+3/2*y(N)*((x(N))^2+1-(y(N))^2)],

[x(N),y(N)],N=0..20, x=-1..1, y=0..1, color=black, dirfield=[30,30]);

<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>

How do I prove this on maple through a graph?

Here is my problem:

How many horizontal asymptotes can a rational function have? upport your answer with an explanation in your own words along with graphical support using Maple.

Plot on the same coordinate system:f(x)=square root of x and g(x)= - square root x + 4-18 then use Maple text to describe in f(x)words the change in to create g(x).

Hello, recently I am trying to generate fortran codes for the proc below:

Give an example of a rational function with vertical asymptotes at x=6 and x=(-2) with a zero at x=3. Show both the function rule and a graph using Maple illustrating the required asymptotes and zero.

Please show me what function to use to graph this. I'm very lost.