How I can find parametric equations for the line of intersection of the planes 3x - 5y + z = -7 and x + 8y - 4z = 13

in maple with a step by step approach?

and also plot a graph in maple showing the two planes and the line of intersection?

Let us consider the simple single-variable function,y=f(x)=x*x(i,e,x^2).Now suppose that we don't know our func is x*x,instead we are given:

                                x                        ...

can any body help me?

i want to solve the following differential equation 

d²x(t)/dt² - 0.066405*sqrt((x(t))(2*r-x(t)))+0.00042105*dx(t)/dt



for this I ahve written the following program

restart

with(plots)

eq := diff(x(t), `$`(t, 2))-0.66405e-1*sqrt((x(t))(2*r-x(t)))+0.42105e-3*(diff(x(t), `$`(t, 1)))

pars := {r = 1}

eq := subs(pars, eq)

I tried to build Pascal's triangle with powcrate as bellow described. It seem not worked and I don't know why (I am using Maple 12). Could you please help me. Thks a lot

Try to build Pascal's triangle with powcreate

Try with 2 different ways:

with u(n)  use subsop and zip to handle the list

with v(n)  use op and zip to handle the list

> restart;
> with(powseries);
 [compose, evalpow, inverse, multconst, multiply, negative, powadd, powcos, ...

restart;gc()

a:=Matrix(1..5,1..5,(rand(1..1000))/1000)

b:=a*1000;

b[4,4] has the value 858.000000000000114   Why isn't this value 858. so that it matches the consistancy of the rest of the matrix??

My problem that i just simlply can`t start Maple 12 under Windows 7 x64 in classic worksheet mode.

I like that much and i tried the suggested maplew.exe -cw but i got the same fancy window what i get starting just maplew.exe.

I need help and thank you.

Got the script below, was trying to plot data from excel in maple and get a curve fitting. i was trying to get the residual meansquare for the curve fitted (last line script), but the script did not return anything. see attached. please let me know what was wrong.

Hi

My computer has 6 GB RAM and works with Windows Seven 7 (64 bits). When I am running my MAPLE program(Version 12), the MAPLE software needs the large amount of memory. But when the consumed memory exceeds over 2 GB, the CPU and computation  stop. Even if I used the Command {kernelopts(datalimit)}, the software did not allow me to use the memory more than 2097100 KB.

I am trying to get the output listed into a vector or list, but I am unsuccessful. I get the error code "improper sequence". but the expression works:

N:=24

while N>1 do if evalb(type(N,even)=true) then N:=N/2;print(N);else N:=3*N+1;print(N);end if;end do;

The output generated is:

12

6

10

5

16

8

4

2

1

I would like to have the output as a list or a vector with two numbers,...

I am trying to solve this set of equations ,but i have spent a lot of time rewriting the equations and changing the signs..but i cant get rid of this erroe and solve it for the unknowns.....could anyone tell me what am i doing wrong ?

Preliminaries:

• Not processing matrics, vectors, or equations (as members).
• Decided sequence Data Structure for an element addressable DS, is most liking to my needs.

Task at Hand:

• Processing integers consecutive from 1 to 10,000 (later upto one million) for multiple properties.
• Presumed marking of a memeber to indicate T/F.
• (later) Although, in time, to perhaps? place a sequence inside that member, for additional degrees of marking, or "bigger data" too.
• Example: bag_list[ 3] := 1; BL[5] 1, 7 1, 11 1, 13 1, 17 19 23 ...
• ie, Marking the primes.

Hi there,

i've wirtten a library for maple12, say "MyLib", which is given by the files "MyLib.ind" and "MyLib.lib".

I've done this via

> restart;  
>  march('create', "<path>/MyLib.lib", 1);
>
> read "functions.txt";
>      
> savelibname:="<path>";
> savelib( `MyLib` );

where "functions.txt" is given as

MyLib:= module()
 

Hi, Im working in Maple 12. I have this function

f(x,y)=(x,xy)=(u,v)

This is a function of R² to R² , I want to know how this function transform the square (-1,1)x(-1,1) in the plane uv. When i put in maple the comand plot for this, it gives me an error, because is of the form:

f(f₁(x,y),f₂(x,y))

Hello, this is probably a silly question but i am new to maple. I am constructing a loop but it does not accept complex numbers, for example:

for x from 1+I to 1+7I do;

x+I;

end do;

this is just a simple example, is there a way to do it like this or do i have to do something else?

Thank you very much

If I assign a list to a variable named depth it causes invalid object errors in for loops for Maple12

depth:=[1,2,3,4,5,6,7,8]:

for i from 1 to 4 do
  i;
end do;

Error, invalid object: mspace(height = "0.0ex",width = "0.0em",[1, 2, 3, 4, 5, 6, 7, 8] = "0.0ex",linebreak = "newline") and  1 additional error.