for example:this equation:(1 - 2 x y[x]) y'[x] == x^2 + (y[x])^2 - 2

and how to make the solution in this form:

y=（x^3）/3+x*(-2+y^2)+C

not the form y=f(x)

sum((1/(1+2/a[k]))^(2*k+1)/(2*k+1), k = 0 .. n)

here a[k] >0, we may also assume that a[k+1] > a[k]

Hi!
is there an option in Maple that can calculate a kernel and an image of a function.
e.g. f: C -> R (complex to real numbers under addition)
complex numbers expressed as w = x + i*y
f(x + i*y) = x+y
need to find ker(f) and im(f) - kernel and image of f.
many thanx!

Hi,

Have a look at the following

+++++++++++++++++++++++++++++

test:=proc(s::string)

local M,a;

a:=rand(10..100)();

M:= Matrix([a-1,a,a+1]);

ExportMatrix(cat("Matrix_",s),M);

end proc;

+++++++++++++++++++++++++++++

test("1");test("2");test("3");test("4");test("5");test("6");

+++++++++++++++++++++++++++++

it saves in file

Matrix_1, Matrix_2,Matrix_3 .....Matrix_6

however,

I've got a block of code that I use once in a simple form, and then a second time in a more cascaded form but the second bunch doesn't work. And it seems as though tan won't evaluate numerically for me - it's really bugging me. Maple 11.
Here's the block of code that does work:
> eqn := Zin = (70.71*(100+(70.71*I)*tan(2*Pi*f/(3*10^8)*0.25e-1)))/(70.71+(100*I)*tan(2*Pi*f/(3*10^8)*0.25e-1));
> eqn1 := GAMMA[i] = (Zin-50)/(Zin+50);
> eqn2 := (1+abs(GAMMA[i]))/(1-abs(GAMMA[i]));
> sol := subs(eqn, eqn1);
> sol1 := subs(sol, eqn2);
> unapply(sol1, f);

How can I prove that the product of the slopes of two perpendicular lines is -1?

thanks,

I was wondering how I double underline a result?
E.g. 2 + 2 = 4
where I would like to double underline 4.
/Ayatollah

how to orient the long label of the vertical axis "VERTICAL" ?

I am looking at some asymptotic expansions of a PDE and need to do some differentiating with complex conjugates. Specifically, I have a number of functions that are functions of both z and conjugate(z), they may look something like:

S -> (z,conjugate(z),xi)

I would like to take the conjugate(z) derivative,

S[conjugate(z)] = diff(S(z,conjugate(z),xi),conjugate(z)),

but I get:

D_{1}S(z,conjugate(z),xi) + D_{2}S(z,conjugate(z),xi)(-\frac{conjugate(z)}{z} - \frac{abs(1,z)}{signum(z)}

Hello people,
Recently I recieved some help with binomial-solutions.
I will most likely come with more questions while I'm working my way through my homework.
In a bag there are 4 red marbles, 5 blue balls and 6 white balls. We select randomly and simultaneously 3 balls
from the bag. What is the probability for each of the following events;
a) The 3 balls have different colors.
I did: binomial(4, 1)*binomial(5, 1)*binomial(6, 1)/binomial(15, 3)
b) The 3 balls are all the same color.
I did: (binomial(4, 3)+binomial(5, 3)+binomial(6, 3))/binomial(15, 3)

Hi i'm trying to code the jacobi method but my code dosen't work. Nothing happens. What hav i done wrong

Hi,
I'm having a problem with the styles I set as default reverting to factory conditions after I close and reopen Maple. For instance, if i set the font to Calibri and make it my default Text font, it will revert back to Times New Roman when I open Maple again.
Thanks

And in worksheet mode,or after click the Ctrl+J,ie insert Maple Input,

I can't use ctrl+=,that generate the results at the right hand.

Pic2 is the one after creating document block

How do I solve for the Lagrange multipliers of

f(x,y,z)= xyz +x^2 + y^3 +z^4

subject to the constraints:

g(x,y,z)= x^2 + y^2 + 2z^2=4

h(x,y,z) = 3yz + 2xz + xy =6

I've never used maple before so am completely lost and need to do this for an assignment=)

thanks

let F(n) is the nth fibonacci number. what is the limit

lim(n->infinity) f(n-1) / f(n+2)