Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

Hello

 

How do I define this function? s(t) = 5*t1/2

This function shows the pace of a particle. I have to decide the time when the pace of the particle is 2 m/s

 

help 

Why does the collect command work for some expressions and not for others. Here is a screen shot

I assume the collect command is supposed to rewrite the expression in terms of the variable descending order.

p := expand((a^2+2*x)*(a^2+2*x));
                        4      2        2   2
                       a  + 4 a  x + 4 x

collect(p, x);
                        4      2        2   2
                       a  + 4 a  x + 4 x

Does not work.

But if you look at the screenshot , it works for other expressions.

I want to make a nested loop and store the data(with complex numbers) in matrix in order to make 3D plot.

The function hypergeom([2/3,2/3,2/3],[-1/3,4/3],z) has radius of convergence 1 and real coefficients.

But Maple tells me evalf(hypergeom([2/3, 2/3, 2/3], [-1/3, 4/3], 99/100),50);

is -138.999 + 0.0012 I
 


It should be more like −138.9962313171333091754979138344422738025

(Maple 18, version 991181)

---

G A Edgar

Hi everyone,

I would like to create an eBook with the pakage "eBookTools", but I have got several errors if in my mw document there is a table. The same error came out if I try to compile a book with the sample documents ("GettingStartedWithMaple.mw"). Anyone knows a solution?

Thank you for your time

 

Giorgio

My 5 year old laptop executes some commands very slowly e.g. plottools(rotate) around a line which is not a Cartesian axis. I intend to buy a new desktop. Which off-the-shelf desktops provide the fastest processing of Maple commands which do not include large data sets? Which provide the best price/performance?

Hello maple experts,

please is there any other way of solving this problem Wht.mw

Some complained that the graphs do not satisfy the boundary conditions smoothly.

Thanks.

how to make below can be successfully run?

normaldiff := proc(f1)
return limit((subs(x=x+h,f1)-f1)/h, h=0):
end if:
recurdiff := proc(f2)
if f2 = 0 then
return 0:
end if:
if f2 <> 0 then
return limit((subs(x=x+h,normaldiff(f2)+recurdiff(f2))-(normaldiff(f2)+recurdiff(f2)))/h, h=0):
end if:

f := x;
normaldiff(f)+recurdiff(f);

expect return 1, is like normal diff

 

Why maple reorders expressions when they are exported in LaTeX? For long expressions this is very anoying!

 

Thank you

Hello

Previously today I had to do some chemistry assignments, which I did in maple, my long time favorite for such assignments.

However I have now encountered a severe problem. I cannot open my worksheet file, .mw. When I try to open it, it asks me whether to open the file as maple text, plain text or maple input??? 

Whatever one I choose, it either opens a blank page in maple, or maple just crashes.

The file in question should be attached. If you can open it, don't mind the language, it is danish

Any help will be greatly appreciated, best regards, Jens

Maple Worksheet - Error

Failed to load the worksheet /maplenet/convert/Opgaver_fra_bog.mw .

Download Opgaver_fra_bog.mw

Completely new to maple. Not even sure where to start with this. Can't get the Simpson's or Trapezoidal Rule to work for me. Any help would be much appreciated

 

and

 

 

and

Here is a serious achievement of the Roots command:


Student[Calculus1]:-Roots(2^x+3^x+6^x-x^2);

                              [-1]

plot(2^x+3^x+6^x-x^2, x = -6 .. 2, gridlines = false);





Download Roots.mw

The solve command also does the job here:

sol := solve(2^x+3^x+6^x-x^2);



allvalues(sol);


evalf(%):

The RealDomain:-solve command fails here.

I wonder how Maple solves it. It would be kind of Maple developers and experts to explain that.

PS. I tried printlevel:=10, but understood the output a little.

 

 

Hi, i got a litlle problem with fromats, i m realy bad at this.
i got procedure 'getone(z::list)' i was execute it like this  
>getone([seq(lineP[i], i = 1 .. pm)]::list)
where lineP is 

>pm := 3;
>rollx := rand(98.0 .. 102.0); rolly := rand(-1.0 .. 5);
>rolll := rand(.5 .. 1.0); rollf := rand(0. .. evalf(2*Pi));
>rollm := rand(0. .. 20.0);

>for i to pm do lineP[i] := [rollx(), rolly(), rolll(), rollf(), rollm()] end do;

it's pm times of z:=[rollx(), rolly(), rolll(), rollf(), rollm()] ::list

and i need make optimization work for any pm=1..100; with rabdomly generated iteration point as above.

The main queston is how make minimize as below
Minimize(z,variables=[z],   initialpoint={z=[seq(lineP[i], i = 1 .. pm)]},iterationlimit=1000,optimalitytolerance=0.01)

work with z::list kind of 

[[100.7798614, 1.109653266, 0.9840371500, 4.257816686, 9.737110573][100.0135459, 0.887539481, 0.9144164697, 3.980093624, 7.343851161][100.0661308, 3.724268229, 0.5020544909, 2.052134822, 14.37408543]]








I find fsolve() to be curiously unstable. Some of the behaviour I can guess at, but other parts are not as clear.

 

Define a function.

P := x->fsolve(exp(-(1/100)*t^2)*cos(2*t),t=x):

plot(P,4..5,smartview=false);

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