restart;
b := 7; de1 := diff(f(eta), eta, eta, eta)-M^2*(diff(f(eta), eta))-(diff(f(eta), eta))^2+m1*f(eta)*(diff(f(eta), eta, eta)) = 0, diff(theta(eta), eta, eta)+m1*Pr*f(eta)*(diff(theta(eta), eta)) = 0, f(0) = S, (D(f))(0) = -1, (D(theta))(0) = -1, (D(f))(b) = 0, theta(b) = 0; d1 := subs(m1 = 1, S = 1.75, Pr = 0.7, M = 2, [de1]); d2 := subs(m1 = 1, S = 1.80, Pr = 0.7, M = 2, [de1]); d3 := subs(m1 = 1, S = 1.85, Pr = 0.7, M = 2, [de1]); d4 := subs(m1 = 1, S = 1.90, Pr = 0.7, M = 2, [de1...

hi

I have two sets of data namely x[i] and y[i], at first i want to pass a spline from all points (points are in 2d x-y diagram) and then extract some point from that. how can i write the suitable code  in maple? 

thanks

Hi There,

Wondering if anyone was able to assist...

I'm trying to differentiate the following equation with respect to Qin:

f(T,Qin,Qp1,Qp2)=T(Qin-Qp1)*(Qp2-Qin)/(Qp2-Qp1)

I have tried using the diff command but with no luck, Maple is returning D(T)(Qin-Qp1)*(Qp2-Qin)/(Qp2-Qp1)-T(Qin-Qp1)/(Qp2-Qp1) which is not complete. 

Any assistance would be much appreciated.

http://www.file-extensions.org/imgs/app-picture/3023/maple.gif

I want to make an application like the picture in Maple 16. Cuold you help me how to make it ?

Do you have any applications about physics nn maple 16?

ok I want to extract data from http://online.wsj.com/mdc/public/page/2_3024-AsianStocks_HONG_KONG.html
So in maple I type:

HTTP[Get]("http://online.wsj.com/mdc/public/page/2 _3024-AsianStocks_HONG_KONG.html", timeout = 100)

but this only give me a bunch of crap and no data and is extremly slow.

What can I do to get the data in a much more efficient way?

hi

i have two row data in excell and i import in maple as the following

Cl_alpha:=<<0.0887574|0.35157>,<0.502959|0.401794>,<0.91716|0.452018>,<1.30178|0.502242>,<1.71598|0.552466>,<2.13018|0.602691>,<2.54438|0.652915>,<2.95858|0.703139>,<3.37278|0.753363>,<3.78698|0.803587>,<4.20118|0.853812>,<4.5858|0.900448>,<5|0.950673>,<5.4142|1.0009>,<5.8284|1.05112>,<6.21302|1.09776>,<6.62722|1.14439>,<7.01183|1.19462>,<7.42604|1.24126>,<7.84024|1.28789>,<8.25444|1.33453>,<8.63905|1.37758>,<9.05325|1.41345>,<9.46746|1.44574>,<9.88166|1.47444>,<10.2959|1.49596>,<10.7101|1.50673>,<11.0947|1.50314>,<11.5089|1.47803>,<11.8935|1.43498>,<12.2781|1.42422>,<12.6923|1.42063>,<13.0769|1.41704>,<13.4615|1.40628>,<13.8757|1.39552>,<14.2604|1.38117>,<14.645|1.38117>,<15.0592|1.3704>,<15.4438|1.35605>,<15.858|1.33812>,<16.2722|1.32735>,<16.6864|1.29148>,<17.071|1.29507>,<17.4556|1.27354>,<17.8698|1.19462>,<18.2544|1.23767>,<18.6391|1.18027>,<19.0533|1.24843>,<19.4675|1.26996>,<19.8521|1.21973>,<20.2367|1.23049>,<20.6509|1.24843>>;

where first row is x and second row is y. i want to interpolate the y values for new x values at the following

xnew:=<<0.119048>,<0.505952>,<0.922619>,<1.30952>,<1.72619>,<2.14286>,<2.52976>,<2.94643>,<3.3631>,<3.77976>,<4.16667>,<4.58333>,<4.97024>,<5.3869>,<5.77381>,<6.19048>,<6.54762>,<6.99405>,<7.38095>,<7.79762>,<8.18452>,<8.60119>,<8.9881>,<9.40476>,<9.82143>,<10.2381>,<10.625>,<11.0417>,<11.4286>,<11.8155>,<12.2024>,<12.5893>,<13.006>,<13.3631>,<13.7798>,<14.1667>,<14.5536>,<14.9405>,<15.3571>,<15.744>,<16.1607>,<16.5774>,<16.9643>,<17.3512>,<17.7381>,<18.125>,<18.5417>,<18.9286>,<19.7024>,<19.3155>,<20.119>,<20.506>>;

please help me

thanks for your attention in advance

I thought the assume command would force Maple to not return solutions that violated the assumption.  But it does not.  How do I make Maple only return those values according to an assumption?

Here is what I did:

When I install Maple 16, It show: Do you want to install watcom-1.3 ? What is the watcom-1.3 file in Maple16

Hi,

I wrote a procedure and saved it into a .mla library, then accidentally lost the file containing the initial code. Can I get it back from the library ? I didn't find the answer in the help on LibraryTools.

Thank you.

To highlight the problem I am haveing let us observe the following example. If we solve the following numerically,

d²/dx² (s(x)) +s(x) -1=0,

ic: s(0)=1/2,s'(0)=0

How would I go about createing a plot of (s(x),x) for  x a member of [0,2*Pi) (useing polar coordinates clearly)?

The probelm I am haveing is plotting for x a member of [0,2*Pi). I know how to do this for x a member of [0,2*Pi] and (0,2*PI), but not  [0,2*Pi).

My code contains a long "module" so i can't really "split execution group".

but it seems that the exported LaTex file is determined to fit "one segament of code" on one page when I compile...

Likely has been asked before, but I cannot find the answer:

I have a table with a good number of entries, all of them indexed by strings. I'd like to sort the table by ascending index (i.e. alphabetically A...,B... etc) before I write the result to a file. Obviously, the entries have to stay with their respective indices.

Like:

Table([B=4,C=2,A=3]); to be sorted as A=3,B=4,C=2.

The sort command in Maple works with Arrays only; I understand.

Hi,

I'm trying to define a simple forward difference operator Δ to act on a function f(n). I have defined, in a number of ways, Δ(f(n)) = f(n+1) - f(n). This works fine but I want Maple to calculate powers of Δ. e.g Δ² (f(n))= f(n+2) - 2f(n+1) + f(n). As it stands, Maple returns (f(n+1) - f(n))² seemingly however I define the functions.
What am I doing wrong? Help much appreciated.

DJF

When I input the following commands in a fresh document

with(VectorCalculus):

SetCoordinates(cartesian_x,y,z)

cartesian_x,y,z   (1)

Del(xy)

0e_x   (2)

I get <0,0,0> when the answer is obviously <y,x,0>. What's going on?

Hi every one,

How can I get bouble Curl of this equation

In the above equation, the first term has the Laplacian, the second one has the gradient and in the term "k" is the unit vector and also u=(u1,u2,u3). sqrt(R) is a constant.