MaplePrimes Questions

What's the difference between VerticalBar and VerticalLine?

 

we have:

x = c[2]*e/c[1]+(2*c[3]*c[1]-3*c[2]^2)*e^2/c[1]^2+(3*c[4]*c[1]^2-10*c[2]*c[3]*c[1]+8*c[2]^3)*e^3/c[1]^3

how can we find a function "F(x)" the first three terms of whose power series around "e=0"  is given as:

1+c[2]*e/c[1]+(2*c[3]*c[1]-c[2]^2)*e^2/c[1]^2

Hello,

I'm try to access some external Fortran routines within maple. I have a Fortran datatype of

  character*255 hf(20)

This is an input parameter, and I believe this will map into a maple Array object, but I'm not sure of the datatype. The help says that the datatype can only be "hardware datatypes" so I take to mean it would have to be of type integer[4]...when I do this I get the error below.

Hello,

I am interested in computing the image of a constructible set in Maple.  I am using Maple 12 on a remote machine.  I am able to load the ConstructibleSetTools, ChainTools, and RegularChains libraries.  This paper indicates that the authors were using Maple 12 and have defined the RationalMap command.

Hello,

Just a question about presentation.

If I have  a program like this:

for i to N do
for j to N do
i+j
od;
od;

How to show it like this?

for i to N do
   for j to N do
        i+j
    od;
od;

I have tryed some compositions with the keyboard but "everything doen't work".

Many thanks,
Ternox

How do i code into maple to check if a matrix is diagonally dominant?

s:=Matrix([[2,1,2],[-5/4,-5,5/4],[21/5,-14/5,7]]):
 

s[1,1];

2

s[1,2] + s[1,3];

3


this is what av done so far but i dont think its correct

for i from 1 to 3 do
for j from 1 to 3 do

s[i,i] <= s[i,j] + s[i,j+1]

od:od:

hello everybody,

Just a little question about lists.
I have a result like this

Result := {alpha[2] = -1.536774530, alpha[3] = -2.345615736};

How to select -1.536774530 and -2.345615736 ???

If I do Result[1];     it return alpha[2] = -1.536774530.

 

Many thanks !!!

Ternox

Hi,

How do I label something without having to have maple evaluate it first?

For instance I would like something like this

 

to be labeled on the right side, when i try it just retuns false.

I defined five functions f[i] and three functions u[j].

Afterwards I integrated f[1]*u[1] for x=-infinity..infinity and defined it as E[11].

Then I defined an equation eqn[11] := E[11] = u[1]

Last but not least I solved eqn[11] to x. So far my doing was none of a problem and produced the expected result.

 

Then I wanted to let maple do this procedure with all combinations of f[i] and u[j].

So I wrote the following nested for loops:

Maple is plotting the first plot, but at the second, it tells me

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
and plots nothing. What did I do wrong?

rect := proc (t) options operator, arrow; Heaviside(t+1/2)-Heaviside(t-1/2) end proc

plot(limit(rect(t/T-1/2)*cos(t), T = 5.5), t = 0 .. 7)

I want to integrate a function which includes a proc. For example

P:=proc(t,w::list)

local v;

v:=choose an element from the list w, according to the value of t

return v

end proc

and my integrand is like this:

F:=(a,b,c,d)->a*b*c*P(d)

I'm trying to get a plot of f(x)=x^1/3 that shows the plot line (i.e. f(x) values) for x<0.  I can get the graph to show the entire four quadrants, but not plot the values for x<0.  Any help would be greatly appreciated, as I just purchased the student edition.

Thanks!

I have a problem i am trying to see how long it takes for my program to give a solution but the time keeps on changeing everytime i press enter. I can't seem to understand why?
 

I am going to export formulas from maple to plain texts like this sample ! Download 11273_plain.txt
View file details but , i confused about this simple job , please someone disabuse me , how can i do it ?

I'd like Maple to simulate airflow over a specified vehicle shape, and get it to display something similar to this.  ...

arghh.  Can't get pictures to paste, sorry.  So far I've never been able to insert a picture, haven't had the need and so haven't worried about it and now when I want to insert a picture, it's not just a straight forward thing.  Any help with that would be apprecited. 

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