I am trying to evaluate the hypergeometric function : hypergeom([1],[1.5],-z) where z is in the order of 1e-6. Its taking very long time where as if I use maple through matlab, then its quite fast !!. Evaluation of Gauss-hypergeometric functions for the similar arguments in maple is quite fast.  Is there any trick I can use for the fast computation of the confluent hypergeom in the case above?.

Thanks for any help

Good evening everyone

I am trying to solve this new problem the whole day up till now and as it is getting very late, I thought asking someone smarter than me might help in the end.

What I experience at the moment is that a written program of mine, as given below, works pretty well, when I set Digits to 10 or less. 100000 loops are not a problem. Yet, as soon as I start increasing Digits to values greater that about 15, my program crashes after about 100 loops. I can see what is happening: The RAM (2GB), is full.

I was wondering how you would convert a number to a Mayan number using Maple11.

I have the expression

(r(r+(1/2)*s))(sin(t)/(r+(1/2)*s)+(diff(y(x), x))/(r^2+(1/2)*rs))

and I want to obtain

r*sin(t)+diff(y(x),x)

I tried expand,collect,combine without success.

Hopefully I missed something and there is a simple solution.

Thanks in advance.

                                       Sandor

I have been reaading previous posts on plotting Dirac functions; in particular: Plotting the Dirac Function and How do I plot Cos(w*t) in frequency domain?

I'm doing a series expansion of complicated expressions using Maple. How can I limit the number of terms, and not the order of the series? To be more precise, I need the series up to x^2, but when I ask for series(expr,x,3) I get terms of x^(2.5) which I don't need. How can I get rid of them without dropping the x^2 terms? series(expr,x,2) truncates them.

Thanks a lot to whomever can help!

Hello Maple experts,

Plotting a procedure is this possible?

Greetings All

I’ve worked out a Fourier Series Expansion using excel and verified it by graphing it in excel to check my results.  See example

http://demos.onewithall.net/discrete_fourier_expansion_coefficients.jpg

Hello all!

I'm am trying to replicate a Berkeley MADONNA problem in MAPLE, and I'm having problems. For those with the great book "Chemical Engineering Dynamics" by Ingham, Dunn, Heinzle, Prevosil, Snape, it's the BUBBLE program.

Hello.

I am haveing one or two issues with vectors.

I am trying to calculate the Angle.

The angle is between

a = s -d -f

b = 3s + d

and then the unit vector which lies perpendicular to a and b

.....

To figure to angle out would you use

cos(theta) = a.b / ( |a| * |b| )

Am i way off or am i close?

Thanks

I have been playing around with vectors, and have managed to do all the usual mathmatical things with them, except for this.

How do i figure the value for |a|

I have vectors a, b, c.

I have tried help, and google, but cant seem to find out how to find |a|

Any help appreciated, thanks.

I'd welcome some advice please on how to control the points Maple uses when plotting in 2D. I have a function f(i) and I'd like it only to plot the points where i is an integer. I have tried including assuming (i::integer) but this seems to make no difference - maybe I have the syntax wrong. I have found the POINTS option but haven't worked how to use this for, eg, 100 points f(1), f(2), f(3) ....... without inputting each point separately (very tedious!) [in fact, even doing this for a few points I still cannot get it to work].

Any help very gratefully received.

Good morning everyone

I have a question concerning Maple file output. Is there a way, that I can produce multiple files with Maple using a loop? My main problem is how to get Maple to create files with different names, like file1.txt -> file2.txt -> file3.txt ..... because so far i figured, that

fopen("file[i].txt",WRITE) , with i beeing the loop index

does not work :)

Thank you for any help

Karl

Hi, I m using the Nonlinearfit command .the fit is very good and gives reasonable values for the parameters of he fitting but Maple says the Residual Mean Squre value is not available when I use the command

eq_fit:-Results(residualmeansquare)

please any one know the meaning?thanks