f is a piecewise smooth function of exponential order. find the function f

exp(-3*t)+t^3+int((7-x+(17/2)*x^2-(35/3)*x^3)*f(t-x), x = 0 .. t)

i need some help. thx

Hi all,

I have been trying for some time create an animation of a 3d plot I created rotating about the z-axis in Maple 15. I tried using the usual

animate(plot3d,f(x,y),orientation=[A,10],A=0..5)

but not only does that produce an error when I try to do the same thing with an implicitplot3d function, it also doesn't work when I try to animate multiple plots in the same graph, whether implicit functions or regular plot3d ones. I am creating a model...

I am looking at various ways to generate surfaces in a cylindrical coordinate system. When using the cylinderplot( ) command, the default color scheme is acceptable. However, when using the implicitplot3d( ) command, the surface comes out very dark. I've played with a few color/lighting options, but I'm still not able to have the implicit3d plot look anything like the cylinder plot. Can someone suggest any color/lighting/shading options that might acheive this. My initial results are attached.

I'm trying to calculate:

int(int((2-3*(x+y)+6*x*y)*(abs(x)^(2*H)+abs(y)^(2*H)+abs(x-y)^(2*H)), x = 0 .. 1), y = 0 .. 1);

where H is a number between 0 and 1 non-inclusive.

Maple seems not to be able to handle this even though it can calculate:

int(int((2-3*(x+y)+6*x*y)*(abs(x)^(2)+abs(y)^(2)+abs(x-y)^(2)), x = 0 .. 1), y = 0 .. 1);

I.e. without the H

Is there a way around this?

Hi 

I have a problem with my three task to do in Maple (ver.16)

1. I have a differential equations:

dy/dt=-y, y(0)=1

How to do it in Maple (using Dsolve command) and how to draw this ?

2. Solve and draw second-order differential equation :

d²y/dt²+y(t)=sin t   ; y(0)=0 ; y'(0)=1

3. Solve and draw equation:

Often when I have an integral maple returns the result as a limiting expression.

However the limit's value is clear. Is there any way to force maple to evaluate the limit?

Any help is greatly appreciated.

Hi

I'm building my set of functions that will deal with geometries of different dimentions, thus I need to deal with/pass to my functions arrays of different dimentions count, I can't figure out how I can build arrays of, for example, n dimentions, where in each dimention m rows, currently I'm using if..elif on array dimention count that I'm retriving by using something lilke n=Size(Size(A),2) where A is the passed array, then I constracting my new arrays by B=Array(1..m,1..m... n-times...

Hi experts!

Suppose we want to plot a function depending on integral evaluation, like

> S := Int(sin(sin(x+u)+sin(y-u)),u=0..Pi);
               /Pi                                 
             ...

"Your Unread Contributions" is broken as of the updates made to MaplePrimes yesterday. It now simply lists every thread that I've contributed to since the update even though I've actually read all the most-recent activity in those threads.

I wanted to add this as a Comment to the "Updates in MaplePrimes" thread, but I can't do that either.

I cannot make an Answer or Reply to the Recent Question "Nonlinearfit problem". When I click "Submit", I get the message "Sorry, something went wrong." I am able to make Answers, even the first Answer, to other Questions.

Also, I cannot make a Comment to the Post "Updates to MaplePrimes" even though I can make Comments to other posts. The same thing happens: "Sorry, something went wrong."

And here is my Answer, in case that Asker sees it here:

Title: numapprox[minimax]

In a folder I have several worksheets in maple. Each worksheet is named Forum, plus a consecutive number. Internally each worksheet has the following structure:

I would like, from a Maple worksheet, perform a query that would allow me to make a table of contents or index of the information found in the header of each section of all worksheets contained in the folder

Good afternoon everbody,

I am trying to make a rational interpolation from the data of a function (values of the function for different points).
I tried to do it with the RationalInterpolation command but it requires too much time. Then I chose to solve the problem with the NonlinearFit command but the result varies a lot if I a change the basic function I want to approach and I always get a warning message: limiting numer of iterations reached.

I can calculate:

Hi,

A right click on the visualization CAD geometry icon, attaching an STL file, activates a pop up list of options. One of the options is "make rigidbody". The units are for the MKS system. I must be doing...

In trying to obtain the closed form for the nth partial sum for some fairly basic telescoping series. It appears that SumTools[DefiniteSum][Telescoping] works well for rational summands. However, when the same is attempted on summands that are not rational, it fails. Below are a few examples.