Hi,

Is there any syntax highlighting for the "code edit region"?

thanks.

I want solve this inequations

> solve((1/4*(beta^2-6))*(-beta^2+2*alpha) > 0);

After running, maple gives an answer in four lines

alpha < (1/2)*beta^2     0 < -(1/2)*beta^2+3
(1/2)*beta^2 < alpha     -(1/2)*beta^2 < -3
[]                                 beta = -sqrt(6)
[]                                 beta = sqrt(6)

now I have questions:

1) In spite of knowing range of beta in thhe second parts of first two lines of answer, why maple...

Hi,

I have two Sum as:

f:=t->Sum(A[m]*cos(m*w*t+m*t0),m=0..mm);

g:=phi->Sum(B[n]*cos(n*phi+n*phi0),n=0..nn);

I want to get the product of f*g as

h:=(t,phi)->Sum(Sum(C[m,n]*cos(m*w*t+n*phi+cmn),n=0..nn),m=0..mm);

Is it possible and how to do that ?

Thanks

Hello,

I am trying to read some text filw with maple. But the first few lines in this file are nothing I need to read. Do you have any Idea how to skip? If I use readdata I get some lines from header too, because there are some numbers.

So text looks like:

.............................................................................
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
........................................................................ ...

I simplified the real task and

the principal problem is how to assign a condition( if x < 3 then t := 0 elif x >= 3 then t := 5 end if) to a variable t which depends on x (x is a argument of function g(x))?

Is it possible at all without writing the procedure?

Here is the code:

g := proc (x) options operator, arrow; 2*x+t end proc; if x < 3 then t := 0 elif x >= 3 then t := 5 end if; plot(g(x))

Hi, may I know what is the function "ismember" in matlab called in maple please? Thanks.

With the command, subpicture,I take the portion of it that interests me.
How I manage to include this sub-image in another image (img)?

Preview(correctedT)

imgs := GetSubImage(correctedT, 100, 125, 20, 120)
Preview(imgs)

I’ve created a basic model of a two-lane road.

I need to solve some  transcendental equations, using Maple 16 which i need to transform or bind with java later. My problem is I cant evaluate.

Equation I would like to evaluate is  offcourse I  defined m and M, prior to c.
Both  eval(k) and evalf (k)  only return k,  I need value for further calculations.

Dear All:

 I have a curve about mosfet  Coss Vs. Vds . the detail math relationship can be found in the following picture: 

 Can anyone fitting this picture by simple math function.

 PS: pls don't considering piecewise function 

i am successfully transforming a 2D plot, when doing the exact analog thing to a 3D plot i get the error message 

Error, (in t) invalid input: unknown uses a 3rd argument, z, which is missing

i have no idea what's going on, please advise.

i made a minimum example:

this works:

> restart:with(plots):with(plottools):
> norm2:=x->x[1]^2+x[2]^2:
> N:=[0,1]:
> phi:=(x,y)->N+2*([x,y]-N)/norm2([x,y]-N):

hi! I have this worksheet with some errrors and I don't know how to solve this.proiect_dm.mw

please help me!

It is possible, using the image tools package, embed a text and a geometric figure in a picture?

 How to proceed?

Gracias

I try to use fsolve to solve a set of equations for real parameters alphaij, thetha (they are the real angle and phases in the parametrization of a unitary 2x2 matrix)

assume(alpha11::real,alpha12::real,alpha22::real,theta::real);

myresult:=timelimit(10*time_max,fsolve({mat_M_V[2,1]=0,mat_M_V[1,2]=0,Im(mat_M_V[1,1])=0,Im(mat_M_V[2,2])=0},{alpha11=0,alpha22=0,alpha12=0,theta=0},'fulldigits'));

unfortunately fsolve ignores my assumptions and returns complex solutions