Hi, there

 I have a formula as blow:

Ue = .5*A*E^2+B*E^beta/(Emax-E)^alpha

I need to find the cofficients (A,B,alpha ,beta) in above formula.What I know is that the relationship between Ue and E, which is:

E Ue 0 0 0.2 0.01576213 0.4 0.629139894 0.5 1.457776151 0.6 2.958910418 0.7 5.605599058 0.8 10.20002179 0.9 17.77607359 0.92 19.57451259 0.95 22.81827108 1 29.34874031 1.02 32.35324584 1.04 35.41703504 1.06 39.08008982 1.08 42.71086444 1.1 46.46475176 1.12 50.53683716 1.14 55.48548924 1.16 60.4973377 1.178 64.70966192

 

Hi every body I have two functions which are aold(x) and anew(x). I am using them to update a function as: For example: aold:=x-> x^2; for i from1 to 5 do anew:=x->aold(x)+x; aold(x):=anew; end do; But it does not work because it cause loop in assigning the function. Also, if I unassign the aold(x) as aold(x):='aold(x)', also anew(x) got unassigned automatically. I am looking for a way to assign anew(x) as anew(x)=aold(x) and after that disconnect the relation between the two functions. Thanks Hamidreza.

I have some data in some text files I want to read in with maple. 

The problem is with the format of the data ... 

I  have a little bit of code that chows a parabola "rolling" and its focus tracing out a catenary. I want to trac the focus but not the parabola, and am unsure how. Any suggestions? Here is my code bit:

> L := unapply(int(sqrt(1+(2*x)^2), x = 0 .. X), X);
> P1 := display([pointplot([0, 1/4]), plot(x^2, x = -2 .. 2)], color = blue);
> F := proc (t) options operator, arrow; rotate(translate(P1, L(t)-t, -t^2), -arctan(2*t), [L(t), 0]) end proc;
> animate(F, [t], t = -2 .. 2, trace = 10, scaling = constrained);
 

Im making an animation that shows a parabola changing over a range of coefficients. I want to display each equation while it animates. Is that possible?

http://www.failai.in/show/F/AE1DF287E/darbas2.mw (without E₀)

http://www.failai.in/show/F/A1488DF1B/darbas3.mw  (with E₀)

It's a links to my worksheets (used maple 11). And now the problems:

So here is the code I have r := sum('exp(-r*x)*l[x +1]*m[x+1]', x = 0..50

Hi, I don't anderstand : executing the following function will froze maple if I enter other values that 'y' or 'n' (yes/no) It should stay in the while block and ask the user until it got 'y' or 'n' to quit the function thank to return call. code: askUser := proc() local rep; printf("Are you OK? (y/n)\n"); while true do rep:=op(scanf(%c)); if rep="y" then return(true); end if; if rep="n" then return(false); end if; end do; end proc; askUser();

Hello everyone. I have a matrix M of 2x2 with numbers in its entries except a particular entry which equals to Im(a*t^2+b*t). I assume that t is real, so that the particular element that I mention obviously must expand to t^2*Im(a)+t*Im(b) but maple doesnt expand it (I use maple 11). I have tried the instruction

map(expand, eval(M)) assuming t::real

but it doesnt works. Could you help me with this, please
Thanks very much
Jorge

I tried to define the following procedure, to shuffle, or randomize a stack 'S':

Mix:=proc(S)
SList:=convert(S,`list`):
subsop(1=NULL,SList):
SSList:=Shuffle(SList):
S:=convert(SSList,`table`):
end proc:

Unfortunately this procedure does not return a stack type, i.e. it transforms S to something different.
Anyway, I need a procedure (or maybe something more efficient), which randomizes a stack and replaces the old stack for the new
randomized one (i.e. S is randomized afterwards and still of type 'stack').

Hi,

i would like to draw a color bar under my plot3D, but i don't know how. is there any way to do that?
thanks.

Hi peoples,I have little problem with 3D  plot in Maple

I am build my function in this way:

mu1(x,y) := (100e6*Transpose(Vector([300,0]))*(Vector([-10,-10])-Vector([x,y])))/(VectorNorm(Vector([-10,-10])-Vector([x,y]),2)*3e8);

mu3(x,y) := (100e6*Transpose(Vector([300,0]))*(Vector([10010,10010])-Vector([x,y])))/(VectorNorm(Vector([10010,10010])-Vector([x,y]),2)*3e8);

mu2(x,y) := (100e6*Transpose(Vector([300,0]))*(Vector([10010,-10])-Vector([x,y])))/(VectorNorm(Vector([10010,-10])-Vector([x,y]),2)*3e8);

Hi, I would like to change the inline plotting window size, by the code, not manually. Is there any way to do that ? Standard size is really too small. Thanks

I have a function: s^5+3.236067976*s^4+(1.*10^(-10)*I)*s^4+5.236067975*s^3+(7.*10^(-10)*I)*s^3-(3.*10^(-10)*I)*s+5.236067975*s^2+3.236067977*s+1.000000000 and I want to drop those terms in s^4, s^3 and s^2 with magnitude less than for example 10^8. I want those imaginary terms gone so I can see my transfer function with only real coefficients. I don't even know what this would be called... so I wasn't able to search for it.

I have 2 question

1. the first question

how to simple expression below

 

is new form