Hi, 

While "numpoints=..." is said to be an admissible option of SurfaceOfRevolution (or VolumeOfRevolution, default value set to 50), the graphical results doesn't account for the value of numpoints.

Is this a known issue?

TIA

Surface0fRevolution.mw



 

Hi,

It seems that plottools:-extrude doesn't support the "style" option: no error returned, just the extusion being always of surface style.
Am I correct ?

Hi, 

I would like to enable/disable the Explore(plot(...), parameters=[...]) command according to some boolean value.
First idea (note that ending the previous command by : instead of ; doesn't prevent a figure to be displayed) was to encapsulated this Explore command within a conditional structure:
if T then Explore(...) end if.

But I prefered trying to define my own command by doing something like this:

EXPLORE := proc(TF::boolean)
  if TF then 
    Explore(_passed[2..-1])
  end if:
end proc:
with a call made this way:
EXPLORE(true, 'plot(a*x, x=0..1)', 'parameters=[a=-1.0 .. 1.0]');
wich ended with this error
Error, (in Explore) No parameters to explore

I also tried this without any more success:
EXPLORE := proc(TF::boolean)
  if TF then 
    Explore(_passed[1], parameters=_passed[2])
  end if:
end proc:
with a call made this way:
EXPLORE(true, 'plot(a*x, x=0..1)', [a=-1.0 .. 1.0]);
I get no more error but this warning and an inactive Explore
Warning, expecting only range variable x in expression a*x to be plotted but found name a

Can you help me to fix this?

Thanks in advance

Hi, 

How can I determine an expression is of the form a*b where a is anything but a function of t, and b a function of t?
I thought I could do this using patmatch but I can't make it work correctly.

For instance I would like patmatch (or something else) to return [a=C, f=F] when called this way patmatch(C*F(t), ?)

Thanks in advance

Hi, 

In Maple it's possible to say that some quantity x has a value of 1 and that its unit is the meter (for instance).
But is it possible to say that x is a quantity whose fundamental unit is the 'length' (or any other fundamental unit, I insist on this point: I don't want to use derived units such as 'force', 'speed', ...)?

I think that the Units package doesn't allow to do this (or maybe I didn't figure out how).

Do you have any suggestions about that?

TIA