MaplePrimes Questions

ABB_IRB_120_Model_IK_OK_6_RealParamsLinearization.msim

 

I did the model of the ABB IRB 120 in MapleSim, but I would like to lock several links but I do not know how to do it.

 

Also I need the differential equations of the robot, which must be six differential equations but in MapleSim equation extraction page there are lots of equations.

 

Please can you help me ?

In the worksheet below I produce a sequence of frames for an animation by distributing the task into several threads.  The result has strange artifacts as we see in the sample.  The artifacts vary randomly from run to run.  Am I doing something wrong?

restart;

kernelopts(version);

`Maple 2018.2, X86 64 LINUX, Oct 23 2018, Build ID 1356656`

kernelopts(numcpus);

4

Draw a simple picture:

frame := proc(t)
  plot(x^2 + t, x=-1..1, title=typeset("t = %1", t));
end proc:

Generate a sequence of pictures:

frames := Threads:-Seq(frame(t), t=0..1, 0.05):

Animate the sequence:

plots:-display([frames], insequence);

Download theads.mw

Hi all,

I have a data set (see .txt file attached) to be fit to the model function A*sin(B*x+C)+D. Calculating the parameters A, B, C, and D is easy enough, but is there a way to have Maple return their standard errors?

Data.txt

Hi,

I can’t perform the last command (GridPlot) on my worksheet

 

 

IRISdata.mw


 

 

Hello,
I am new to Maple and have some problems with fonts in Maple's forms. How can I increase the size of the monospaced font? (see the screenshot).

How would I go about getting true or false returned on these propositions?
I have tried just about every eval and various syntax methods, but nothing has worked so far.

I know most can easilly be done by hand/thinking, but I'm sure Maple should have a way to do this as well.

∀n∈Z:2n>n+2   ,   ∃n∈Z:2|(3n+1)    ,   ∃k∈Z:∀n∈Z:n=kn   ,   ∃k∈Z:∀n∈Z:2|(n+k)   ,   ∀n∈Z:∀k∈Z:(n>k∨k≥n)

Hi,

How to view all  statistical bank of data in Maple ? ( for example , Iris data)

Thanks

I am trying to find coodinates projection H(x,y, z)  of the point P :=<x3, y3, z3> on the line AB, where A:= <x1,y1,z1>, B:= <x2,y2,z2>. I tried

restart:
with(LinearAlgebra); 
A:= <x1,y1,z1>:
B:= <x2,y2,z2>:
P :=<x3, y3, z3>:
H:=<x,y,z>;
solve([DotProduct(B-A, H-P, conjugate = false) = 0, B-A = k*(H-A)], [x, y, z, k]);

I can not get the result. How can I get the coordinates of the point H?

 


I have a hard to understand quotient of multivariate polynomials- my intuition is that the denominator nearly divides the numerator - and it could be rewritten as:

remainder+(much simpler numerator)/denominator

as far as I can see the functions quo and rem aren't designed for this - but I'm certain that people in the maple community must have overcome this kind of problem before

MVP_quotient.mw

I am trying to run maple program in a workstation using 20-40 processor for a job. I have no idea how to do this. Thank you.

how i can solve the eqution by ritz methode codes?

For example...

Using a $2 calculator I get that rad(2470) it is approximately 49.699094.

I haven't used Maple in several months and was surprised to see that I couldn't easily search the answer to this question. Something like eval() does not work on this.

There is a time difference variation between two clocks (0.124, 0.120) and between the same clocks for the same calculations at different times(0.07, 0.124 and 0.120, 68. What is the reason?

Thanks for answering.

Ramakrishnan V
 

restart; t1 := time[real]()

2344.956

(1)

t1PC := Now(ProcessClock)

_m1718422690432

(2)

"for i = 1 to 1000  i:=i+1  end;"

t2 := time[real]()

2345.080

(3)

t2PC := Now(ProcessClock)

_m1718421822656

(4)

tdiff := t2-t1

.124

(5)

tdiffPC := t2PC-t1PC

120*Units:-Unit(ns)

(6)

I redo the same programm again to see the time of performance

t1 := time[real]()

2345.253

(7)

t1PC := Now(ProcessClock)

_m1718419758016

(8)

"for i = 1 to 1000  i:=i+1  end;"

t2 := time[real]()

2345.323

(9)

t2PC := Now(ProcessClock)

_m1718418631616

(10)

tdiff := t2-t1

0.70e-1

(11)

tdiffPC := t2PC-t1PC

68*Units:-Unit(ns)

(12)

 

Now I again recall the stored time values. (unit: milliseconds). t1 and t2 are retained for ever until unassigned.

t1

2345.253

(13)

``

t2

2345.323

(14)

t2-t1

0.70e-1

(15)

t2PC-t1PC

68*Units:-Unit(ns)

(16)

``


 

Download timeToRunDifference.mw

There  are commands tic and toc in matlab program.

tic

toc

toc - tic 

This gives the run time for the program.

Even in excel, we can find the difference between clock times at the start and end using NOW commands.

Is there a similar way to use maple commands to find the running time of a program.

 I want to find the time taken by the student to solve the quiz questions in the enclosed doc.

Could anyone help please?
 

restart

Chapter 1 -  SubChapter 1 - Precalculus - Quiz 1 (15 questions - Duration - 1 hour)

 

                Factor 3*x^2-10*x-8

(3x + 2)(x - 4)

NULL

NULL

NULL

NULL

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Press your option above for Answer

 

 

``

 

              Solve "x^(2) - 4 x - 5 = 0 by factoring"

``

``

-1, 5

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Press your option above for Answer

 

 

``

 

                Roots of the equation x^2-8*x-20 = 0*are

 

``

- 2, 10

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Press your option above for Answer

 

 

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Correct Answer

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Correct Answer

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Correct Answer

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Correct Answer

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Correct Answer

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Correct Answer

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Correct Answer

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Correct Answer

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Press your option above for Answer

 

 

QuizNULL

Go to Chapter1 - SubChapter 2

Home

 

NULL


 

Download Commands_for_Time_Taken_to_Answer_Please.mw

Thanks.

So I'm running into the problem that when I use an assumption, to say automate dsolving, the solution functions I end up defining, has the 'tilde' variable in it. which doesn't seem to be redefinable. How do I get rid of the assumption, in a defined function, or alternatively, how to do I redefine the variable so the function will use it?

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