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I have an assignment that I am suppose to be doing in maple, I am suppose to plot the function f(x)=e^(x/3)sin(2x) for abs(x)<=2.... for part of it...

Ive tried multiple things in maple such as plot(exp((1/3)*x)*sin(2*x), abs(x) <= 2) but it keeps throwing me an error, any insight on how to get tis graph plotted would be great.

I am having trouble identifying all the possible roots existing in the range specified.

In the file attached i have a non-linear set of equations that are solved for "w" value specified...but fsolve provides solutions only at certain values of "w" , does it mean there is no solution for other data points ?...or is there a way to find out all possible solutions for each value of "w"

Question_primes.mw

I am trying to evaluate integral (-1/rho)*del (p)/del (x) dy within the limits y=0 to y=delta (x). For that I first evaluated (-1/rho)*del (p)/del (x) and stored it in res2. Then I tried to integrate it w.r.t dy within limits 0 to delta (x). I wrote the following Maple lines for the purpose:

Te := proc (x, y) options operator, arrow; T[inf]+(T[w]-T[inf])*(1-y/delta[t](x))^2/(1+2*A*H/delta[t](x)) end proc

PDE := diff(P(x, y), y)-rho*g*beta*(Te(x, y)-T[inf]) = 0

How may I program the following with Maple?

(1) Define the function:

H(p) := p * c1 + p^2 * c2 + p^3 * c3  + ......

(2) Now construct the following expression:

(1-p) [ v''' + 1 ]  = H(p) [ v''' - 25 * v' + 1]

Here, v is some funciton of x.

(3) Now assume: v = u0 + u1 * p + u2 * p^2 + ...

and substitute this into the expression defined at the point (2).

I would like to set the range for a 3d plot.  For a 2d plot, I understand I can do it at the command line or by setting the axes properties after the plot's been drawn.

If I use plot3d(x*y, x=-10..10, y=-10..10) for example, how can I look at those parts of the surface for which -2 < xy < 2 for example?  I'd be happier with a command line option than a gui option but really anything would do.

many thanks!

Mary

Dear Maple Users

I am looking for specific answer, please see the following code,

by trial and error I estimated proper values for 4 parameters, and corresponding equations become close to zero.

However I need to make it automatically via maple, what can I do?

If I give ranges for parameters, there is no answer existed.

Thank you.

you can download worksheet from the below:

Hello, 

I am just starting to learn about maple.

I have a graph of two functions and would like to find the range that they agree within

 a certain percentage using fsolve() and format the interval as a list. 

The part that is throwing me off is the within a certain value part.  Thanks in advance!

> restart;
> with(DifferentialGeometry):with(LinearAlgebra):with(JetCalculus):with(Tools):with(PDEtools): with(DEtools):
> 
> declare(u(x(t),y(t),t),v(x(t),y(t),t));

             u(x(t), y(t), t) will now be displayed as u


                   x(t) will now be displayed as x


                   y(t) will now be displayed as y


             v(x(t), y(t), t) will now be displayed as v

> PDE_sys:={diff(u(x,y,t...

Example:

implicitplot(x^2 + y^2 = 1, x=-2..2,y=-2..2)

This command produces a plot with the range x = -1..1, y = -1..1 instead of what I specified.

I don't remember this being a problem on the older editions of Maple. 

Hi there,

I was woundering if there is a function implemented in Maple11, where I can enter a function and it's domain, and the output is the range. For example:

Entering f(x)=x^2, and the Domain x in (-1,2), I would want Maple to tell me that f(x) is in [0,4).

Is there such a function implemented? I need this quite often, most times on functions from R->R, but also more general for functions from R^n -> R^m. I know that in some cases you could...

I'm trying to use dsolve to get a numeric solution to a series of differential equations I have. I've got:

G := 1;

M := 1;

pT := 2;

OrbitEnergy :=  (r0) -> -1/r0+(1/2)*L^2/r0^2-L^2/r0^3;

OrbitDEs := diff(r(tau), [tau$2]) = -G*M/r(tau)^2+L^2/r(tau)^3-3*G*M*L^2/r(tau)^4, diff(phi(tau), tau) = L/r(tau)^2, diff(t(tau), tau) = sqrt(r(tau)/(r(tau)-2*G*M)+(diff(r(tau), tau))^2*r(tau)^2/(r(tau)-2*G*M)^2+r(tau)^3*(diff(phi(tau), tau))^2/(r(tau)-2*G*M));

How can I use 'evalr' and 'shake' for functions (in a relative or absolute sense)?

What I see in the help is the result for disturbing the input to a function (by decimal digits).

But I want ranges for the output, if the function itself is disturbed, not only the input
(giving resulting error ranges, even for exact input).

Any idea?