Assumption:f(x)=x^2+2x

how to solve f(x+1) according the assumption.

this question is going to be asked has been done several times by me but no answere is sent,but i do it again:

f(x)=sqrt(x+1)→domain(f):[1,+∞),range(f);[0,+∞)

how to solve them at the maple15

Hi, i'm trying to solve the following PDE in Maple:

>

I have modeled something like a rope attached to a fixed frame at both ends. Is there a way to detach one end of the rope from the fixed frame during a simulation? Is there a better way to go about this? I want to be able to release one end of the rope during the simulation.

Any advice or thoughts will help.

Thanks 

There was mention to have simplify=false in Maple to stop it from it's automatic manipulation which would otherwise be considered obvious but not necessarily wanted. 

The idea brings up numeric manipulation. 

For example how do I force maple to factor out (1/3) from this :

a:= (1/3)*x^2 + (1/6)*x - (1/12)

to to show this

(1/3) * ( x^2 + x/2 - 1/4 )

Things brings up another question, the collect command...

Hi!

i have a short question. It should be easy to answer.

I use unapply which works fine but it seems as it doesn't save the result. If i call  Phi := unapply(A1[1], x1, x2); this gives me: (x1, x2) -> 1 - x1 -  x2 (the function I expected)

but when i call "Phi" it just gives me the symbol for Phi and not the function. Maple uses the symbol for following calculations.
            ...

Hi, while working on a worksheet a message abou kernel lost appear, saying to restart maple. I saved my worksheet (maybe I should  have not) and I restard it, but now my worksheet its a complete nonsense and I seem to have lost weeks and weeks of work. Is there anyway to recover my orginal woeksheet (the .bak file is also crushed) ?

Here is the crashed worksheet

NWHP5.mw

thanks in advance

Hello,

I have started using Maple and I was computing some algebraic  system of equations and when Maple solves it it returns nothing. I do not understand what is happening. Does it solve it but for some reason does present the result or it does not solve it. Because simple systems it solves and shows the result but for my system it does not show anything...

My equations are:

eq5:= (((Nd)^((epsilon-1)/epsilon)+Fu^((epsilon-1...

I would like some help in order to build the following algorithm (Gianni-Kalkbrener) on Maple.

I have a cyclic-5 problem of the following polynomials

L := [a*b*c*d+b*c*d*e+c*d*e*a+d*e*a*b+e*a*b*c, a*b+b*c+c*d+d*e+e*a, a+b+c+d+e, a*b*c*d*e-1, a*b*c+b*c*d+c*d*e+d*e*a+e*a*b]

I found the Grobner basis of that using:

GrobnerBasisOfL := Basis(L, tdeg(a, b, c, d, e))

Then, I have found the FGLM of the Basis using:

refer to Madan's paper about VG in year 1998

equation (6)

tm := int(expand(1/(rho*sqrt(2*Pi*g))*exp(-((X-theta*g)^2)/(2*g*rho^2))*g^(t/v-1)*exp(-g/v)/v^(t/v)/GAMMA(t/v)),g=0..infinity);
characteristicfun := invfourier(int(tm,x=0..infinity),x,w);

it is not equal to (1/(1-i*theta*v*u+(v/2*rho^2)*u^2))^(t/v) ?

it can not be calculated

I would like to create a single animated plot with two components.

The first component being an animation of the graph of r = 2*sin(theta) as theta varies from 0 to 2*Pi in the r-theta plane.

The second component is another animation, simultaneously showing how the graph of r=2*sin(theta) is generated in the polar coordinate system.

I am able to produce each component separately rather easily using the plots:-animate( ) command. What I am looking for is somehow being able to use ...

Hey guys

I am currently working on my final project in high school. This project is about mathematical modelling within epidemology, and i am currently working on the mathematical models based on the SIR model.

The basis models for the SIR model were pretty easy, but i cant figure out how to fit data to my models. My first idea was to use the method of Leastsquare and/or Nonlinearfit, but i cant figure out how to do this in maple.

Hi im using maple 16 and defined a vector field that is lengthy below,

(and yes i defined with(VectorCalculus), and SetCoordinates(cartesian(x,y,z)) (x,y,z is subscripted)

And i am using a type of line integral for the work of a particle's path through a force field which i defined here as Z.

Hi, I've defined a function :

Hello,

I'm trying to fit some of my research data to a polynomial.   I can do this, but what I need to know is how Maple is calculating the standard errors.  In other words. I need to know the underlying forumla Maple is using for these standard errors.

Is there any documentation on this anywhere?  

For reference, the Maple command I am using is:
LinearFit([Z^(-2),Z^(-3),Z^(-4),Z^(-5),Z^(-6),Z^(-7),Z^(-8),Z^(-9)],X,P2,Z,output=standarderrors); 

I have a large symmetric square 15x15 matrix (say B). With all entries in the region 0.285746383 and I am trying to calculate the eigenvalues of them using

with(LinearAlgrebra);
Eigenvalues(B);

B was originally an array that I converted to a Matrix with convert(B,Matrix).
I have also used type(B,Matrix) which returns true.

Yet when I enter Eigenvalues(B); It returns "Error, invalid input: LinearAlgebra:-Eigenvalues uses a 1st argument, A, which is missing"