It appears to be a modification of the worksheet that I created and appears to have a "rogue" line prior to the FOR loop. I downloaded your file, removed that one line and it worked fine.

It appears to be a modification of the worksheet that I created and appears to have a "rogue" line prior to the FOR loop. I downloaded your file, removed that one line and it worked fine.

I found the brief commentary by Hawking throughout the book informative, and very much enjoy (I'm still reading the book) learning about the mathematicians and their contributions. You and I may have different perspectives. Having left school after the 10th grade and just recently having the opportunity to get back into mathematics, I'm somewhat like a kid in a candy store - I pretty much devour anything that I can get my hands on concerning the subject.

I found the brief commentary by Hawking throughout the book informative, and very much enjoy (I'm still reading the book) learning about the mathematicians and their contributions. You and I may have different perspectives. Having left school after the 10th grade and just recently having the opportunity to get back into mathematics, I'm somewhat like a kid in a candy store - I pretty much devour anything that I can get my hands on concerning the subject.

The state of confusion and frustration often grows exponentially. Once it starts, it requires a lot of effort to keep it in check. I'm really glad you got through this and learned a few things about Maple in the process. Thanks for the book recommendation - I'll add that one to my library and have a look at the others by Paul J. Nahin.

The state of confusion and frustration often grows exponentially. Once it starts, it requires a lot of effort to keep it in check. I'm really glad you got through this and learned a few things about Maple in the process. Thanks for the book recommendation - I'll add that one to my library and have a look at the others by Paul J. Nahin.

John, I thought the exact same thing about that syntax when I first saw it. I use to program in Perl before they came along with PHP for the web which uses a similar syntax. PHP incorporates a lot of languages, including Perl, so you'll find it a lot in there as well. I think one of the programming languages for a PIC based microcontroller by Parallax also uses the dollar signs for defining variables.

I think I answered your questions sufficiently in my previous comment. However, just a confirmation - be sure to double check anything you enter when in "2D math" mode as it seems to present me with more of a challenge to make sure everything is interpretted as it is entered when in that mode rather than 2D input. I seem to have the most errors, if I enter a bunch of lines of code, in 2D Math, execute it, and then go back up to the middle or top of what I've entered and make some changes. I also had a problem with worksheets I had made previously loading with question marks after saved and then reloaded from the command line if I was NOT connected to the internet. The problem completely went away if I loaded them from the Maple GUI file/open menu.

I think I answered your questions sufficiently in my previous comment. However, just a confirmation - be sure to double check anything you enter when in "2D math" mode as it seems to present me with more of a challenge to make sure everything is interpretted as it is entered when in that mode rather than 2D input. I seem to have the most errors, if I enter a bunch of lines of code, in 2D Math, execute it, and then go back up to the middle or top of what I've entered and make some changes. I also had a problem with worksheets I had made previously loading with question marks after saved and then reloaded from the command line if I was NOT connected to the internet. The problem completely went away if I loaded them from the Maple GUI file/open menu.

Although I really like Document Mode, it can get a little strange at times - at least for me. Whenever you start to enter code, you have to make sure that you are in "math" mode. In the file you just posted, the red lines are input in text mode. If the cursor is a line straight up and down, it usually indicates that you are entering lines interpreted as text rather than math. Math mode will usually have a slanted cursor. Also you can tell by the highlighted icons at the top of the window. Also, in one of your other worksheets, I noticed that after you entered some super text for something like "y^2" you stayed supertext and entered some code that you didn't want to be up there, so always make sure to hit the right-arrow to get back down on the line where you want to be.

Although I really like Document Mode, it can get a little strange at times - at least for me. Whenever you start to enter code, you have to make sure that you are in "math" mode. In the file you just posted, the red lines are input in text mode. If the cursor is a line straight up and down, it usually indicates that you are entering lines interpreted as text rather than math. Math mode will usually have a slanted cursor. Also you can tell by the highlighted icons at the top of the window. Also, in one of your other worksheets, I noticed that after you entered some super text for something like "y^2" you stayed supertext and entered some code that you didn't want to be up there, so always make sure to hit the right-arrow to get back down on the line where you want to be.

Before John came back with his really great answer, I tried to work out a solution for you in Maple 11 and posted an example of it. The link to an HTML showing what I did as well as a link to the Maple 11 worksheet within the HTML is shown below HERE I've never done anything quite like this, so I wanted to at least give it a go and maybe there is something at least a little worthwhile in it that you can use. I'm probably as new to Maple as you are, and just got back into learning math a short while ago as well.

John - I wonder, if based (loosely) on some of the ideas HERE if the following is also feasible for finding the indexes here I apologize for beating this into the ground, but I find the various techniques presented here very interesting. I also can't get my code to post correctly, so that's the reason for the images of the code - sorry.

John - I wonder, if based (loosely) on some of the ideas HERE if the following is also feasible for finding the indexes here I apologize for beating this into the ground, but I find the various techniques presented here very interesting. I also can't get my code to post correctly, so that's the reason for the images of the code - sorry.

- deleted what I had the "oops - sorry" about. I thought I had it wrong, but it looks right after all. It seems like this would be super easy with C & (AND bitwise). I didn't really know until now that bitwise fucntionality wasn't availabe in Maple. It should be easy to make a DLL with C to do it though.