MaplePrimes Questions

Hi all, we know Maple provided discrim method to find discriminant of a polynomial 

I want to write a similar method with independent variable is ,... my code is below

Some examples

Maple already similar method? If not have, we can improve performance it?

Thank you very much.

 

Can anyone help me to solve the attached system of PDEs with a given expression for the HINT such as HINT = F[1](t)*F[2](r*sin(phi))

I am not able to set such an arbitray HINT function for system of PDEs.

SysPDE_HINT.mw

 

Thank you,

Ahmad

Here are 4 statements that attempt to use invlaplace on the exponential function. Two work, two don't.

Does anyone know why the two that don't work do that?

Thank you.

__________________________

with(inttrans);
[addtable, fourier, fouriercos, fouriersin, hankel, hilbert,   invfourier, invhilbert, invlaplace, invmellin, laplace, mellin,   savetable]
invlaplace(exp(-s),s,t);
                          Dirac(t - 1)
invlaplace(exp(s),s,t);
                    invlaplace(exp(s), s, t)
invlaplace(exp(s),s,t) assuming s<0,s::real;
                    invlaplace(exp(s), s, t)

invlaplace(exp(-s),s,t) assuming s<0,s::real;
                          Dirac(t - 1)
What is going on here?
 

Hello!
How do I solve ODE numerically. I tried, but I fall into a singularity when t is greater than 0.01.
Please help me!!!

 

 

 

I am a new user of Maple 2020. I have found that when I create a 3D plot, the point probe does not return the coordinates of the point that I click on.  I would appreciate any help in using the point probe in a 3d plot. Thanks.

 

Dear All,

I want to apply the ‘simplify’ command, in parallel, for the simplification of some parameters. Both Grid:-Map and Grid:-Run commands are tested. There is no error in both, whereas no simplification is implemented. It seems that the ‘simplify’ command correctly works on only ‘Master’ node, namely anywhere we are typing.

Can anyone help me to simplify in parallel. I examined two following codes.

1)

with (Grid);

for i from 1 to nops(dummy_UU1) do

freenode:=WaitForFirst():

Run(freenode,simplify,[dummy_UU1[i]],assignto='dummy_UU2'[i]):

end do:

Wait();

2)

dummy_UU2:=Map[tasksize=1](simplify,[seq(dummy_UU1[i],i=1..nops(dummy_UU1))]):

 

 

The following code is correctly executed and resulted in the simplification of dummy_UU1 components in serial.

for i from 1 to nops(dummy_UU1) do

dummy_UU2[i]:=simplify(dummy_UU1[i]):

end do:

 

Good day to all.

I have a data set consisting of 12 points in the x-y plane. These points form a periodic pattern and I was wondering if it is possible to obtain a curve that is a best-fit for these points. I have reason to expect that this pattern will repeat for successive points (i.e. points 13, 14, ..., 30).

Does anyone know of a way to obtain a function that can represent this behavior?

Thanks for reading!

MaplePrimes_Best_Fit.mw

 

Hi, I have this values I want to plot as three dimension how can I plot it?

ApproximateSol := proc (w, t) options operator, arrow; w^2+t+rtable(1 .. 1, 1 .. 1, {(1, 1) = (.2960214364*piecewise(0 <= w and w < 1, 1)+.1939557186*piecewise(0 <= w and w < 1, 4*w-2)+0.2635024425e-1*piecewise(0 <= w and w < 1, 16*w^2-16*w+3))*(0.7620592980e-10*piecewise(0 <= t and t < 1, 1)+0.1532687805e-9*piecewise(0 <= t and t < 1, 4*t-2)+0.8496500063e-10*piecewise(0 <= t and t < 1, 16*t^2-16*t+3))+(-.2380729574*piecewise(0 <= w and w < 1, 1)-0.9481780593e-1*piecewise(0 <= w and w < 1, 4*w-2)+0.442773709e-1*piecewise(0 <= w and w < 1, 16*w^2-16*w+3))*(-0.2362176714e-9*piecewise(0 <= t and t < 1, 1)+0.6793447600e-10*piecewise(0 <= t and t < 1, 4*t-2)+0.2039654777e-9*piecewise(0 <= t and t < 1, 16*t^2-16*t+3))+(0.7931761947e-1*piecewise(0 <= w and w < 1, 1)+0.967928372e-2*piecewise(0 <= w and w < 1, 4*w-2)-0.2747829289e-1*piecewise(0 <= w and w < 1, 16*w^2-16*w+3))*(-0.1118492678e-9*piecewise(0 <= t and t < 1, 1)-0.5202991920e-10*piecewise(0 <= t and t < 1, 4*t-2)+0.1128321001e-9*piecewise(0 <= t and t < 1, 16*t^2-16*t+3))}, datatype = anything, subtype = Matrix, storage = rectangular, order = Fortran_order) end proc

Could anyone help me out to convert the equation into differential transform method

 

Hello Everyone, can anyone explain how to import a mathematical equation from maple to word directly?

Just wonder about the status of the public folder in Maple Cloud.

I've tried to upload a file there, but got the reply that the uploaded file is going to be reviewed first. That was end of july.

Sorting files after date shows that the last upload was done in october 2019. Content unknown as it that was in chinese (probably).

It's not really important to me, as I can always find another site to upload stuff, just wondering.

Write a program to display all different relations on a set with 4 elements.

Hello,

My question is quite simple yet maybe a bit hard since I understand that messing around with series can lead to dead ends.

Given a certain general term, for instance sum(x^n/n!,n=0..infinity): Can Maple recognize which function does it come from (in case such analytic function is known)? in the example I would expect it to return exp(x).

Thank you very much.

Hi,

I wonder if we can change the way Maple works so that all calculation can be done in degree instead of radian?

I know that we can *pi/180 to set it to degree but if the calculation lots of sin, cos, tan etc. it would be really hard.

Hope you can help me. Thanks for your participation and assistance.

Thank you.


Kind regards

Faiz Farhan

I'm trying to graph this function but it comes out a straight line.

Thanks in Advance.

plot(cos(Pi/4), -2*Pi .. 2*Pi)

plot(cos((1/4)*Pi), -2*Pi .. 2*Pi)

 

``


 

Download Graph-cos.mw

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