Is there a way to make the y-axis logarithmic using DEplot?

Use a change of variables to find the volume of the solid region lying below the surface f(x,y)=(2y-x)^4sqrt(x+y) and above the parallelogram in the xy=plane with vertices (3,5) (2,6) (10,10) and (11,9)

Graph the 'ice cream cone' formed ny the upper half of the sphere x^2+y^2+z^2=16 and the cone z=sqrt(x^2+y^2) using maple, and find the z-coordinates of its center of mass.

Graph the solid common to the cylinders x^2+z^2=4 and y^2+z^2=4 using maple and find the volume of the region common to the cylinders.

I'm suppose to graph the first octant portion of the surface z=4-x^2, 2≤y≤5 using maple and find the volume of the solid over the xy-plane and under the surface.

I use a for loop to step through the operands of an expression and do a calculation on each operand. I am then unable to add up or otherwise access for manipulation the result of the for loop and wondered how this could be done. What I mean is as follows. I have the expression w

w := 2*(1/2/Pi+Q*cos(k*phi))*Q*cos(k*phi)*(exp(-1/2*sigma^2*k^2)-1)*t*(1/2/Pi+Q*cos(k*psi))/(beta^2*(1+beta^2*(1/2/Pi+Q*cos(k*phi))^2))+(1/2/Pi+Q*cos(k*phi))^2*Q*cos(k*psi)*(exp(-1/2*sigma^2*k^2...

This exponent is a number of order 2011! and Maple operates with such quantities. However, the simpleminded approaches fail:
> for k to 10 do is(`in`(2^k, numtheory[divisors](factorial(2011)))) end do;

Error, (in numtheory:-divisors) object too large
 
> for k to factorial(2020) do if is((factorial(factorial(2011))/2^k)::posint) then NULL else print(k) end if end do;

Error, (in fact) Cannot allocate memory (size=100728832)

Hi,

I'm using Maple 11 and pdflatex. I'm trying to export Maple code to latex.  To this end, I've exported my maple file as a latex file and included the maplestd2e package in my tex document. However, from compiling the tex file I only obtain pdf output for those parts of the original maple file that represent output. For example, the following tex-code correctly produces the word 'true':

\mapleresult
\begin{maplelatex}
\mapleinline{inert}{2d}{true}{\[\displaystyle {\it true}\]}

Hey guys. Can you help me with this problem? I'm trying to plug in a snowflake equation in finding the perimeter of a snowflake on the nth step. The function is as follows:

p:=n->(3*(3/4)^k, k=1..n);
                                   

I'm trying to find the limit of this equation and it's suppose to give me infinity by using this command:

limit(pn(n), n=infinity);     but it's not quite giving me the limit. The limit is...

hello

I have a large data series and i need to get derivative (numerical derivative) of them. how can Ido it?

So there is a maximum number of conditions that one can set... good to know!

I tried your solution, and it does work. I'll just have to determine the values of my b1 and b2 parameters with a little programming.

Thank you very much!

Hi there, 

I want to know how I can animate a plot with more than one parameter? I can manage animating a plot with one parameter, using the 'animate' command, but this seems to be limited to a single parameter.

How could I do it? If it is not possivle in Maple 11, would such an option be implemented in Maple 15?

Also: If I would want to animate other things than plots, are there commands for that in Maple 11 / 15?

Thx :)

When I solve a certain equation I get a list of solutions t as below. I want to select some of the solutions and assign them to variables. In the program I am writing the number of items in the list of solutions will vary and so I cannot really select the list item by using t[3].t[4] etc. for example. 

I want to be able to select only the list items with say a square root sign or another term such as Pi, beta etc that appears in the list of solutions. So...

As I did not upgrade to Maple 14 when it came out, I am interested to know the differences between v15 and v13. Obviously, it is easy to get a comparison between v15 and v14, as all I need to do is study the promotional advertising. But is there a way of getting a comparison list between v15 and v13 ?

thanks,

Andrew