Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

There have been many times when I want to see what the graph a function looks like, but don't have numbers to put in there. Sure, I could just plug in numbers, but that often affects the graph - such as slope. Is there any way for Maple to show me the shape of a graph with a symbolic function?

Hi,

How to compress the following equation to make it more easly readable.

 

A:=-1/2*Phi*(variphi*sigma*sinh(l*S0)*cosh(l)-variphi*sigma*sinh(l*S0)*sinh(l)-variphi*sigma*sinh(l*S0)*R1*cosh(l)+variphi*sigma*sinh(l*S0)*R1*sinh(l)+cosh(l*S0)*l*N_1*cosh(l)-cosh(l*S0)*l*N_1*sinh(l))/l/(-R1*R2*cosh(-l+l*S0)*sinh(l*S0)+sinh(-l+l*S0)*cosh(l*S0));

 

Thanks

If I have an ODE say dg/dx = g I can't seem to get a solution I can work with directly. Of course with dsolve I can get an expression which I can cut and paste into a function definition: ie.

ode:=diff(g(x),x) - g = 0

dsolve(ode)

g:=x->"output from dsolve"

 

But how do I get g(x) without the cut and paste. I have tried a number of ideas (rhs, subs) but I cannot get a function I can use  for example to calculate g(0) or g(1)

The June edition of the IBM Ponder This website poses the following puzzle:

Assume that cars have a length of two units and that they are parked along the circumference of a circle whose length is 100 units, which is marked as 100 segments, each one exactly one unit long.

A car can park on any two adjacent free segments (i.e., it does not need any extra maneuvering space).

Hi,

Maple 13 here. Is there a tutor which gives you a step-by-step solving process for linear 1st and 2nd order ODEs (similar to the one for Calculus/Integration Methods) ? I have been disappointed in not being able to find this, unless I am missing something.

thanks,
Andrew

The problem

Back in 1996 I was working for the Symbolic Computation Group at the University of Waterloo, developing algorithms and code...

Good Afternoon.

I have a problem with that project, because the when i move the dial (DialKp1) the component Mathbase don´t update the lat change.

I don´t know how can i do for updating it?

 

 

23-06-2011-modelo_di.mw

 

 

 

 

 

 

Hi Experts,

Here is my File. I use the DirectSearch2 Library.

Searching the Minimum works fine. (800 sec on i7 PC)

But the Datafit runs endless.

I tried to make the fit with min SSE that works, but why does DataFit not succeed?

 

Thanks for answering.

Walter

GroundWater_Solution.mw

Hello Everybody

 

for Solving a parabolic Inhomogeneous  PDE, I used the Green's Function,

I tried to simplify the Inhomogeneous term, But still can not calculate the answer.

 

this is my file : W111.mw

 

Please HELP !

I like the pretty print of maple, and I want to print the output to a file instead Maple document (if it could be, print in both of 2).

For example:

exprs := [ (a*x + b)/sin(x) = 0, (a*x^2 + b*x + c)/(d*x + e) = 0 ]:
print~(exprs);

And my output text file may be somthing like this:
                          a x + b    

As an exercise to find the solution of this equation,

         (a^(x+2))^(1/3)  =  (a^(x-5))^(1/2)

Maple 14 and 15 provide no answer, which preceding releases found to be x = 19,

but complain about a "numeric exception: division by zero"!

     Is that progress with Maple?

> r= r*cos(theta) + r*sin(theta);

le the ODE, ode.

 

> G=6.67 * 10^(-11);

 

> F1=(m*a);

 

> F2=(-G*M*m)/(abs(r^(3)));

 

> solve(m*a)=(-G*M*m)/(abs(r^(3)));

 

11_1_eng.mw This Maple worksheet Ukrainian students have downloaded 84.581 times a week. ("ZNO")

> with(DifferentialAlgebra:-Tools);
Error, `DifferentialAlgebra` does not evaluate to a module
with(DifferentialAlgebra):
> with(DifferentialAlgebra);
Error, invalid input: with expects its 1st argument, pname, to be of type {`module`, package}, but received DifferentialAlgebra

don't know why maple 12 give these error, how to import differentialalgebra package?

I was warming by Maple that:

Warning, Exception in unload function 'free': Error, (in _free) invalid dictionary ID

What is it? I have no information about this warning.

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