_Code:

^{Graph := NULL; for i from 0 to N-1 do for j from 0 to 10 do if j <= finite_element_xi[i] and finite_element_xi[i] <= j+1 then finite_element_sigma[i] := evalf(finite_element_epsilon[i]*R(j)); p := plot(finite_element_sigma[i](x), x = finite_element_xi[i] .. finite_element_xi[i+1]); Graph := display(Graph, p) end if end do end do;
Error, (in plot) illegal use of an object as a name}
I don't understand how to draw a graph for sigma

I wanted to debug some code from worksheet A.  So added DEBUG(); command in the code where I want to start the GUI debugger from, and then run the command from the worksheet. All is working OK. the debugger GUI comes up and I can step in. 

Now I wanted to debug some other code from worksheet B. But without closing the currect debugger which is open and running.

It turned out this is not possible.  When running debugger from worksheet B, it uses the same debugger GUI that was up and running. I think it closed that session automtically also.

So basically using same Maple process, one can't open two debgging sessions at same time? Is there a way around this.

I run each worksheet using its own math engine. So each is separated from each other.

But this is first time I wanted to debug two things at same time, i.e. side by side, thinking I will be able to open two GUI debuggers at same time.

I know ofcourse I can open two separate Maple processes and then I will be able to do this. I think I am allowed to have two Maple's open at same time. Will try that next.

But it will be better if one is able to open two debuggers from same Maple at same time. I do not see why this should not be possible.

Any suggestions if there is a workaround? May be some hidden setting that allows this?

Maple 2023.2.1 on windows 10

Good day.

I am working on a time series problem that uses 107 data sets (historic) and I wish to obtain a forecast for the next successive 12 events. I have obtained the time series plot for the predicted values and the associated dates separately (see attached), however - I am looking to get the solution in a more user-friendly format and was hoping someone could help me out.

Can someone tell me how to 

1. Express the data values only as whole number values (decimal-free)

2. Construct a table of data values and dates for the average forecast as well as the 2nd and 98th percentile forecasts?

Thanks for reading!

MaplePrimes_TS_Example.mw

Here is the layout challenge: Whenever the value of a physical quantity is one as in

mass = 1* Unit('kg')

automatic simplification removes the one and the output displays

Desired would be which reads better (in particular when used inline in text passages).

Using the Empty Symbol

mass = ``(1)*Unit('kg')

an expression with parenthesis is obtained (that can be removed in subsequent calculations with the expand command) which looks worse than my current workaround of using floats

(Introducing floats in expressions is not always acceptable)
So the idea would be to use the empty symbol for initial parameter definition in textbook style layout and remove it with expand in subsequent calculations.

Any other symbol that prints as "1" that can be removed in later calculations by Maple commands is welcome as well. It should be better than

mass=`#mrow(mo("1"));`*Unit('kg');
subs(`#mrow(mo("1"));` = 1, %);

Hi all,

I wrote a little simple minded procedure for finding the sum of divisors for a positive integer.  I thought I would share.

sum_of_proper_divisors.mw

sum_of_proper_divisors.pdf

Has someone written better code for this task?

Regards,
Matt

When there are print commands in a loop their content is printed as soon as this command is executed.
This is not the case with printf whose displays are delayed (buffered?).
Is there a way to force the display of printf when the command is executed?

TIA

Motivation: I want to display intermediate execution times in a prettier way than print offers.

Is it possible to enlarge the sliders in Explore(plot(...), ...) and increase their "resolution" (meaning to have a higher precision when the slider is moved)?
If Maple does offer this option, could you tell me from what version this is the case

TIA

For a project I need to construct a large symbolic adjoint matrix, hoping it can be factored afterward into nice expressions.
In the worksheet, I present an adjoint matrix using permuted Hadamard products. What puzzles me is that only for even dimensions, I need to multiply it (elementwise) with a parity matrix. Okay, not a specific Maple question, but maybe someone can help me out.

Download Adjoint.mw

The attached worksheet shows that Maple 2023 produces an incomplete plot of a function.  Maple 2021, however, produces the full graph.  I wonder if Maple 2023's behavior is due to a bad setting in my environment or a plotting bug in Maple.

Download cannot-plot.mw

I would like to plot graph of 2d function f(x, y) = (-ax/(1+y^2), x+by) where x from -5 to 5 and y from -5 to 5 and parameter bar of a and b. Thank you 

Axis properties and line width reverts to some set of defaults each time my work recalculates the plot. Is there a way I can keep the axis properties and line width from changing each time recalculation occurs?

I've used LinearSolve(A,b) to find three unknowns. How do I assign these values to three named variables?

I assigned the resulting vector to a new one

V:=LinearSolve(A,b)

and then, one by one, assigned the elements to variables

C1:= V[1}

C2:= V[2]

C3:= V[3]

But there perhaps is a more elegant way to do this?

As I am new to using the statistics package, I have some doubts about how to perform certain operations in Maple.

For example, let sigma be a variable containing any real number, finding the average is easy, just use the command A0:=Median(sigma) and if you want A (see image below) just take A1:=A0^2. However, the terms that make up <sigma^2> cause a certain difficulty, how to do this? In other words, calculate the B of the image?

sigma := [2, 4, 0, 6]

AMedia := (2 + 4 + 0 + 6)/4;
AMedia1 := AMedia^2;

A0 := Median(sigma)

A1 := A0^2

BMedia := (2^2 + 4^2 + 0^2 + 6^2)/4

sigma0 := sigma^2

sigma1 := Mean(sigma0)

.......................................................................................

hi every one.

in the attached maple file at line x=o in the plotted figure we have some inconsistency in starting the branches from x=0 and the branches do not start from the same value on this axis.

I can not find the problem because there are not any differences between phi 1 and phi 2! 

evalf(f1 - f2)= -5* 10 ^-49

h-x_nemodar-e.mw