Note that the series without the Pi does converge... sum(3*cos(x)/x,x=1..infinity) is -3/2*ln(2)-3/2*ln(1-cos(1)) It is an interesting exercise to get Maple to tell you that... --- G A Edgar

Report filed with Tech Support. (Fortunately I could find the number for our site license to fill in). I referred to this thread for information. --- G A Edgar

Report filed with Tech Support. (Fortunately I could find the number for our site license to fill in). I referred to this thread for information. --- G A Edgar

When the error happens, I get a 0 byte file, so it seems writing is OK. plotsetup(gif,...) works. I can use that, then convert to EPS in another program. I'll be manipulating the plots in Photoshop anyway, so this solves my immediate problem. But the general question remains about plotsetup(ps,...) on Mac. --- G A Edgar

When the error happens, I get a 0 byte file, so it seems writing is OK. plotsetup(gif,...) works. I can use that, then convert to EPS in another program. I'll be manipulating the plots in Photoshop anyway, so this solves my immediate problem. But the general question remains about plotsetup(ps,...) on Mac. --- G A Edgar

I used: Standard Worksheet Interface, Maple 10.06, Mac OS X, October 2 2006 Build ID 255401 Mac PowerPC G5, MacOS X 10.4.9 Maple 10 for Mac seems to have no classic (Windows and Linux, yes; Mac, no). Command-line Maple 10 also yields "Error, plot driver not found". Maple 9.5 Standard Worksheet Interface, Maple 9.51, Mac OS X, August 17 2004 Build ID 163892 same result. Maple 7 Maple Worksheet Interface, Maple 7.00, APPLE_PPC_MAC, Tue, May 29, 2001 Build ID 96223 this worked, once plotdevice=eps was changed to plotdevice=ps . I said I used to do this, but I don't remember if I have done it since Mac OS X ... --- G A Edgar

I used: Standard Worksheet Interface, Maple 10.06, Mac OS X, October 2 2006 Build ID 255401 Mac PowerPC G5, MacOS X 10.4.9 Maple 10 for Mac seems to have no classic (Windows and Linux, yes; Mac, no). Command-line Maple 10 also yields "Error, plot driver not found". Maple 9.5 Standard Worksheet Interface, Maple 9.51, Mac OS X, August 17 2004 Build ID 163892 same result. Maple 7 Maple Worksheet Interface, Maple 7.00, APPLE_PPC_MAC, Tue, May 29, 2001 Build ID 96223 this worked, once plotdevice=eps was changed to plotdevice=ps . I said I used to do this, but I don't remember if I have done it since Mac OS X ... --- G A Edgar

Also try a university library. If they subscribed to the journal, they should still have it (perhaps in storage...) --- G A Edgar

I would say: do not use the `if` operator. Use `piecewise`. At least in settings like this, and probably always... > sum(piecewise(k=0,n,binomial(n,k)),k=0..n); n - 1 + 2^n

...matrices [[1,0],[0,1]] and [[1,1],[0,1]] have the same eigenvalues with the same multiplicity, but not the same Jordan form. --- G A Edgar

Well, according to the definition, hypergeom([a,b],[0],x) does not make sense. So you cannot "lower c" when c=1. I agree Maple should produce an error message, and not just return zero. It seems that something undefined multiplied by zero is simplified to zero before Maple realizes it is undefined. --- G A Edgar

I once had a perhaps similar problem with copying from a worksheet. The solution someone gave me was to change "Typesetting Level" (in Preferences / Display) to "Extended". --- G A Edgar

Now that you know about "fi", can you guess the former use of "od" ? --- G A Edgar

Now that you know about "fi", can you guess the former use of "od" ? --- G A Edgar

The answers provided by Maple involve RootOf expressions. This means Maple did not have a closed-form solution. It is saying: take any solution _Z of the equation _Z*r-Pi+arccos(cos(r*(Pi-arccos(cos(_Z)+1)))+1) , then plug it in to get the answers.