Carl Love

Carl Love

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12 years, 364 days
Himself
Wayland, Massachusetts, United States
My name was formerly Carl Devore.

MaplePrimes Activity


These are replies submitted by Carl Love

@zack94 If you post any Maple-related Question, I'll give you 5 reputation.

@Joe Riel Hmm, I'm aware that the value that my program above returns is roughly proportional to kernelopts(stacklimit). It seemed unlikely to me that that knowledge would help the OP, so I didn't mention it. 

So, now that you've mentioned it, do you know of any aspects of the procedure itself (such as its size) that would change the count?

@rlopez Why do you think that she wants a numeric solution?

@Preben Alsholm Yes, that consistency is a good reason. I was disappointed by the arrival of this kernelopts option because I thought that it should apply to all constants. Nonetheless, it is more of a nuisance to me to have to use evalf every time that I have a result with Pi that should be floating point.

It is a time-wasting nuisance that I see your Questions both here and on StackOverflow. I wish that you wouldn't simultaneously ask the same Questions in both places. Perhaps you could wait a reasonable time, and if you don't get a suitable Answer in one place, then ask in the other?

@Preben Alsholm Why do you prefer floatPi= false?

Yes, those bugs exists for me also---Maple 2016 x64 Win 8.1.

@acer The following is the first sentence of the fifth paragraph of Description at ?Digits. I think that this is poorly worded, and may cause confusion between the roles of interface(displayprecision) and Digits.

The interface(displayprecision) command controls the number of decimal places to be displayed, which is determined by Digits.

@Axel Vogt 

Axel, what is your Digits set to for the above computation?

@awass &where is mostly just a symbol. You can put & in front of any symbol, and it becomes a "neutral operator" (see ?&). There's a tiny amount of code behind &where, which you can see by showstat(`&where`). The only purpose of &where is to compactly format returned solutions in terms of variable substitutions. It often occurs in results returned by pdsolve. Essentially the same thing can be done with Eval (with a capital E!).

@MortenZdk

What documentation are you referring to?

@san There will always be some size of matrix at which your monitor is incapable of displaying it "in stander matrix form," as you say. Isn't that obvious??? Either buy a bigger monitor, set the Zoom factor lower, or be content with looking at your matrix one piece at a time.

You can set the Zoom factor from the View menu.

If A is a matrix, you can see rows 15 - 20, columns 10 - 15 of A by

A[15..20, 10..15];

@Adam Ledger Yes, I believe that you'll find that is correctly returns FAIL for most such elaborated special-function identities. It's not designed to handle cases such as this where you need to hand-guide FunctionAdvisor through several steps. I believe that it was designed more than a decade before FunctionAdvisor.

@Matt C Anderson Lowering the value of Digits lowers the accuracy of all of Maple's internal floating-point computations. It affects a lot more than just the final display of decimals. Setting Digits to 4 is just a hair better than having all of Maple's internal computations done with a slide rule. (If you're younger than 50, you may need to look up "slide rule" in Wikipedia.) It's a bad idea.

@zack94 You're much more likely to have your question answered if you post it directly rather than responding to a thread that's been stale for over a year.

If you want to communicate directly with the author of a post, click on the More tab at the bottom of the post. From the menu, select Contact Author.

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