I am trying to view some fairly involved 3D plots in Maple 10, where I both construct some polyhedra, and label the points. When I click on the image, in order to rotate it, etc., it vanishes. Generally, I can recover it if I slightly scroll the page up or down (manually -- Maple 10 has no scrolling from the mouse -ack!). But if I touch the image again, it vanishes again. This does not seem to happen if I view simpler images, but I need to view the sets, and their labels (vertices). Any ideas? Thanks!

(1/2)*sqrt(2)

I know that it is too simple, but if my expression has lots of these terms then it will take me some time to simplify it by hand.

I am looking for an automatic way to do it in Maple.

 

Thanks

tlist := [ [s] ]:
  for j to 4 do
    if tlist[-1,1]=s then
      tlist := [ tlist[], [t,tlist[-1][]] ]
    else
   tlist := [ tlist[], [s,tlist[-1][]] ]
  end if
 end do:
tlist;
 

which gives result

[[s], [t, s], [s, t, s], [t, s, t, s], [s, t, s, t, s]]

 

is there an easier way of writing this?

Hi I am trying to plot sin (pi x) but maple says

Warning, unable to evaluate the function to numeric values in the region; see the plotting command's help page to ensure the calling sequence is correct

I cant understand this warning, as when i put 3.14 instead of pi it plots a nice graph.

 

Please help

In Maple 13, I use: convert(arccosh(x),ln); Maple gives: ln(x+sqrt(x-1)*sqrt(x+1)); which is fine. Now try and convert back: convert(ln(x+sqrt(x-1)*sqrt(x+1)),arctrigh); Maple gives: ln(x+sqrt(x-1)*sqrt(x+1)); Why doesn't Maple return arccosh(x)? Thanks.

Hey

I was trying to use the command readdata to read a *.txt file in which I saved the results of some calculations that I obtained with a program that I wrote in C language.

I'm organizing the data in columns on the *.txt file. For example:

hello, how do I simplify an equation in cos and sin (or any other) into either of only cos or only sin. for example, imagine we have y=sinx + cosx. How do we ask maple to change the whole equation into terms of only sin or only cos?

 

tank you

How can i input two equations in maple and intruct maple to find the points of intersection? giving me the coordinates of each point

Hello, I recently bought the Mac Os version of Maple 13 online. However, in the meantime I got a new computer. My question is, is there anyway to uninstall it on my old computer and transfer it to my new one or do I have to spend another $125 to buy a new license? Daniel

These are the steps that I need to do

determine the domain and range of the functioon

determine the intercepts and asymptotes of the graph

locate the x-values where f'(x) and f''(x) are zero or undefined

then i need to determine where the relative extrema and the points of inflection occur (this i should be able to do if I can get the graph)

i have to know how to do this for two kind of function for a test tomorrow I missed all week because i was sick and we are allowed to use the software on the test.

here are the functions

I am sure this is easy but I am so new to the software I just can't figure it out

I want to analyze the graph of f(x)=x^3+3^2-9x+5

I just can't seem to figure it out at all

 

i also need to do the same with the following function

f(x)=(x^2-2x+4)/(x-2)

Please please help i have a test tomorrow and can use the software on the test so i need to know how to do this

Hello,

I have a system which is below:

 

X6-n4-n2, -n3+n1, -n4*X17t+n2*X9t, n3*X17t^2-n4*X17tt-n1*X9t^2+n2*X9tt, 130*X9tt-60*X17tt*n2*n4+60*X17tt*n1*n3-40*n2*X11+981*n2+60*n2*n3*X17t^2+60*n1*n4*X17t^2, -1500*X9tt*n2*n4+1500*X9tt*n1*n3+2250*X17tt+1000*n4*X11-14715*n4+1500*n4*X9t^2*n1+1500*n3*X9t^2*n2, n1^2+n2^2-1, n3^2+n4^2-1

I need to do primedecomposition for it. Maple could not do this for me kernel was lost. However system is not very big.

I have a procedure:

duplicates := proc(L)
local newL,vals,T;
newL:=[x->x];
vals := {[1/2,1/4,3/4]};
for T in L do
if not (T([1/2,1/4,3/4]) in vals) then
vals := vals union { T([1/2,1/4,3/4]) };
newL := [newL[],T]
end if
end do;
return newL
end proc:

I want to take a wav file and plot a smooth curve across the top indicating the relative maximums then put those points in an array or matrix with their relative x values.

with(AudioTools):
aud:=Read("c:/Documents and Settings/My Music/sample.wav")
aud2:=ToMono(aud)

There are quite a few spikes around the maximums which would indicate multiple maximums at each max area but I just want the general max.

Dear Maple users

This may be a very simple question: How do I operate on the coordinates of a vector in the most streamlined way?

Lets say I have a vector <2,4,5,8,9> containing the diameters of five different circles. I want a vector V in which the coordinates are the corresponding circle areas. So the first coordinate of V should be 1/4*Pi*2^2, the next coordinate 1/4*Pi*4^2 , etc...  How is this done in the most simple way i Maple? In principle I want a method, which will work for any function ...

Regards, Erik V.