I am not sure where 95% comes from, but this is what Maple's Introductory Programming Guide says: "An important feature of Maple is its open architecture. You can access the source code of most Maple library routines (only the code for the built-in kernel routines cannot be viewed). This accessibility is helpful for learning the Maple programming language, and it is essential for enhancing existing routines to meet your specific needs." Displaying Maple library procedures is discussed on page 340 of the Maple 10 User Manual. See also help page at ?showstat. Hope this helps and welcome to Maple, J. Tarr

If you are using Maple 10, the procedure here should do everything that you want. Hope this helps, J. Tarr

I seem to have stumbled across an oddity when setting the interface variables. Using restart:Digits=15:interface(displayprecision=6): interface(rtablesize=13): at the start of Acer's code above, I get the Vectors B and A and Matrix C displayed with 9 or 10 digits, but with 18 or 19 digits in the case of Matrix CI, and its inverse. Inserting interface(displayprecision=6) just before constructing Matrix C, however, produces the expected result in C, CI and its inverse. J. Tarr

Have you tried creating your own styles and style sets? You should be able to do 1 - 3, saving them all to your own style set. There's a lot of help at ?styles,documenting,worksheet and its hyperlinks. Good luck, J. Tarr

You could also use interface(displayprecision=5). Hope this helps, J. Tarr

Toby, Your assumed correctly: I used Maple 11. Why wait two months? Upgrade now and enjoy! J. Tarr

Please see the example worksheet available by entering ?GraphTheory,examples at the command prompt. That will show you the main features of the GraphTheory package, including how to import and export graphs. Hope this helps, J. Tarr

You could do this :

> restart;

> int(exp(-x)/sqrt(x^2-1),x=1..infinity);

>

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Hope this helps J. Tarr

Have you tried uninstalling Maple and then re-installing? If your OS is MS XP, you might have to clean up the Registry before re-installing. Good luck, J. Tarr

Notice that using seq as above means that you get plots for only two values of k. Here's how you could get more: implicitplot( {seq( u^2/(sin(k*Pi/20)^2) - v^2/(cos(k*Pi/20)^2) , k=1..20,4)} ,u=-1..1,v=-1..1); J. Tarr

The command you quote contains terms like (sin^2)^(k), which are meaningless. Assuming that you intended sin(k)^2, you could do something like this: implicitplot( {seq( u^2/(sin(k)^2) - v^2/(cos(k)^2) , k=1/24..evalf(Pi/2))} ,u=-1..1,v=-1..1); Notice that one cannot use k=0..Pi/2, because seq must have numerical arguments, so one must use evalf(Pi/2), also k=0 produces a singularity. Hope this helps, J. Tarr

Please see ?Statistics[Histogram]. Right click the page, select Copy Examples and then paste into a blank worksheet. That will show you how to use the command for your purposes. Hope this helps, J. Tarr

Please see ?ListTools[Split]. Hope this helps, J. Tarr

You might find implicitplot together with animate is useful in such circumstances - see ?implicitplot and ?animate. You could try something like this: restart;with(plots): e1 := (u^2/sin(k)^2)-(v^2/cos(k)^2); animate( implicitplot,[e1,u=-5..5,v=-5..5], k=0..Pi/2 ); Don't forget to click on the apparently empty plot to access the animation controls. Enjoy! J. Tarr

You could eliminate the nulls by converting your array to a list before using select( x -> ( x mod 3 = 0 ) , foo ) Hope this helps, J. Tarr