@9009134 

If you click on plot ( in document mode) , you get a context menu. There is a tickbox  with scaling constrained option too.
You can experiment with other plot options there. 

@vv 
Thanks 
For the good advice.
Understanding a math concept is the first step and then practicing by hand 
To do it on your own makes it even harder and probably for many math topics impossible without a teacher
But these day internet can be source of  studymaterial. 
Must be possible for me think as B Ed in math to study some calculus topics, if am taking the time for it of course.
 

@vv 

It is a sparringpartner Maple for understanding more  calculus, but it follows not always a textbook for integration for not adding a constant
 

@vv 

Thanks

There are two functions involved f(x) and f(y) for  z= f(x,y)  for partiel differentation
(If you consider it as two intersections curves from a surface as defining a partiele directive)
So then f[x](x,y) =0    ..y(x) is left over as constant

It s getting more complicated in another example with v(x,y,z) for a vectorfield:.has it a potential function?

@tomleslie 

Thanks

Its solved as you mentioned : there is a display command needed 

I execute a animate command without display in the table 

All is working fine i think 

@tomleslie 

Thanks

Indeed

The first worksheet attached if you take this one or take the one  from dr Lopes the output of a intermediate animate plot gives this message.

But the final animate works.   

@tomleslie 

What should i could  aspect  for the arttached worksheet ?
Most all of the commands are suppresed by a colon and focus is on the animation of the positionvector   

When i do a iniline with Ctrl+=  for P1 there is message : 

          [Length of output exceeds limit of 1000000]

So this animation cannot be seen , but the final anmation works 

@tomleslie 

Thanks

Your fix for method 3 shows a spatial curve for the positionvector, while i thought i was for 2D ?  

@rlopez Y

Thanks

Did not know that there was non-executable math applied for Method 3 for the worksheet
Well it is now up to date the worksheet and what direction could Maple2020 go, that this revised worksheet for 2020 will not be working again for the future ?

Must be a interesting list of math topics. 

@janhardo 

I bought calculus III lessons

Its very useful an it covers a lot ,although the vectorcalculus packgage is not used here because 
its old lessonmaterial. 
You can study some vectorcalculus this lessons   

@tomleslie 
Thanks!
None of the examples are diificult to understand in both modes,
They are the same ,but in 1D mode it takes some more work for programmer input    
 
 

@tomleslie 

Thanks

You created a small procedure for maple input  with a scalarfunction as argument and a point from this scalarfield.
Outcome of this command is a gradientvector on a levelsurface
Maybe trivial , but stiill complex 

Did not pay much attention for the navigation buttons sofar , but it seems that browsing helppages is possible
But once opening a example worksheet in studentvectorcalculus  the navigation icons are gone
( that is because i am out of the help section ), but there is link to go back to mainpage of student vectorcalculus
So its always possible to go back to the mainpage

Discover also that the help examples  can be in 2D mode too, that's good

Yes , you create a vector function for maple input  mode  
I am doing this now in 2D input mode ( i am doing math in Maple now on two ways.. help..lol))
A function definition is here natural

f(x)= x   .. and you get a function, but now in 2 D input  for a vectorfunction

post_forum_gradientvb_boek_blz_391.mw

@janhardo 

I do need a collection of vectorcalculus worksheets to get a a idea how the calculations with flux are done

@Carl Love 
Thanks!

Important to know the namegiving for this all, for using all formulaes in the ricght  contect.

A surface(S) can be the top (roof) of a 3D figure and a area (A) is the bottom of that figure
A lateral surface from a solid , this all for 3D.  
A function f (x,y,z) is 4- dimensional and the surface levelcurves can be used to calculate the flux for this surface (S) (3D vectorfield)

I am just now practicing with 2D flux and 3D flux for a vectorrfield  

For 3D flux a surface integral (surface S) projected as area integral( area A) can be used and 2D flux using a circulation integral 

After this 3 integrals for vector-function/field
- Green (2D): vectorfunction : flux  
- Gauss (3D) : vectorfield : flux
- Stokes (3D) :vectorfield with rotation(curl) gives circulation

Looks not too  difficult to do this in Maple

@rlopez 
Thanks

I just did it earlier as you proposed now
I realised now that the picture in the book are hollow spheres  : two spheres are  drawed. 
Plotting a massive sphere alone does not contribute much for insight, but the idea was to use the context menu as  exerxcise.
To construct this is via "plotprogramming"  and not intuitive anymore ,
Perhaps there is option in the plotbuilder to draw the two sphere only as circles and adding dashed lines is programming
(but that i don't want to do here : take too much time ).  

I want to do some bookexercises to get used on the contectpanel