## 70 Reputation

11 years, 193 days

## @dharr Thanks a lot.  ...

@dharr Thanks a lot.

## @dharr Thanks a lot. I have two que...

@dharr Thanks a lot. I have two questions:

1. what is

2.

ode1 := PDEtools:-dchange(tr, de1/(K*R), [t, x, y, a, b, c, q, m], simplify);
/    2                          \
d           x(t) \x(t)  + (a - 1) x(t) - a + y(t)/
ode1 := --- x(t) = - --------------------------------------
dt                         x(t) + a

ode2 := PDEtools:-dchange(tr, alpha*de2/(R^2*K), [t, x, y, a, b, c, q, m], simplify);
d
ode2 := --- y(t) =
dt

y(t) ((q (b - m) y(t) + b + c - m) x(t) + a (-m q y(t) + c - m))
----------------------------------------------------------------
(x(t) + a) (1 + q y(t))

These two are not as nicely organized as you. What to do? dchange1.mw

## @mmcdara Thank you...It works...

@mmcdara Thank you...It works

## @rcorless Is there any process to g...

Is there any process to get like this

resultant(A, a01*(a20*b20 - a30*b10) + a11*a20*b11, a20*b20 - a30*b10)

I tried with

B := a20*b20 - a30*b10;
resultant(A, a11*a20*b11 + B*a01, B);

But not works

## @vv After simplifying A there will ...

@vv After simplifying A there will be terms involving  sigma+x, sigma*x & I want to put a and b in that places

## @vv It is just a polynomial. No squ...

@vv It is just a polynomial. No square roots.

I want to get the coeff x*sigma^2, coeff x^2*sigma etc. How to do that?

## @Carl Love Is it possible to get th...

@Carl Love Is it possible to get the Taylor series by letting sqrt(epsilon)=x about (x=0,lambda2=0)?

If yes please suggest the steps.

## @Carl Love It says Error, unable to...

@Carl Love Thanks a lot

## @Joe Riel Thanks for the informatio...

@Joe Riel Thanks for the information Joe.

What is

````

## @acer Thanks a lot...

@acer Thanks a lot

## @Carl Love Yes I need the 2nd prese...

@Carl Love Yes I need the 2nd presentation that you have mentioned but separeted by comma. Like

h1,   h2,    h3,

h4,   h5,    h6

AA1, AA2, AA3,

AA4, AA4, AA6

## @Carl Love Yes I need two different rows...

@Carl Love Yes I need two different rows.

## @Carl Love Now it is exactly that I...

@Carl Love Now it is exactly that I want. Thanks a lot.

## @Carl Love Now it is exactly that I...

@Carl Love Now it is exactly that I want. Thanks a lot.

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