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Active Posts:: 334 (0.16 per day)
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Last Active:: Feb 19 2013 09:24 AM
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Posts I've Made

In Topic: Cube root calculator: Issue when trying to calculate result.

Posted 19 Jul 2011

hulla, on 19 July 2011 - 04:49 AM, said:
You're saying I have to write an algorithm to check whether lFinder*lFinder*lFinder=lUserInput, and that lFinder is constantly changing?

You have to write an algorithm to determine the value of lFinder. It's not as simple as saying lFinder^3 = lUserInput and the computer knows how to find the cube, you have to tell it how to find it.

Quote
Quote
Let's say I gave you this problem: x = (12,167/x)/x, would you be able to solve it without a calculator?

Yes, I can solve that with a piece of paper, a pencil and time.

Hence, the next part of my statement:

Quote
Odds being, no, and if you were able to, it would be because you had perfect cubes memorized to a decently large number, or you knew how to derive the cube root using mathematical principles.

My point was that, unless you had that number memorized, you wouldn't be able to do it without performing some math on the original number. You have to tell the computer which math to perform on it in order to arrive at the desired answer.
In Topic: Cube root calculator: Issue when trying to calculate result.

Posted 19 Jul 2011

What you're asking the computer to do no human could do either, at least, not the way you're phrasing it mathematically.

Let's say I gave you this problem: x = (12,167/x)/x, would you be able to solve it without a calculator? Odds being, no, and if you were able to, it would be because you had perfect cubes memorized to a decently large number, or you knew how to derive the cube root using mathematical principles. The computer knows no mathematical principles, and unless you give it a list of perfect cubes, it doesn't have those memorized either. You would need to design an algorithm that the computer could use to determine the cube root.
In Topic: How to fix C++ purchase program using switch and nested loops?

Posted 19 Jul 2011
Your loops are incorrect, that much is certain:
```
while (appleQuantity)
   {
      appleTotal = appleTotal + (apples * appleQuantity); 
   }
```
This is an infinite loop. It doesn't have a condition so its waiting for appleQuantity to be 0 (the equivalent of false) before it continues, which doesn't happen since the value of appleQuantity never changes. There's really no need for this loop as simply putting appleTotal = appleTotal + (apples * appleQuantity); will give you the total cost of your apples.
In Topic: abstract class

Posted 19 Jul 2011

In essence, an abstract class (in any language as far as I know) is a class that is "incomplete" and can not be used on its own, but rather it must be derived from.

More information:
http://msdn.microsof...y/ms173150.aspx
In Topic: When adding to an ArrayList, does it contain a copy or reference?

Posted 16 Jul 2011

Thanks for the advice all. I was just wanting to make sure that it wasn't creating a reference to the object that I wanted to clear, and it appears I have the answer to my question.

My Information

Member Title:: D.I.C Regular
Age:: 26 years old
Birthday:: June 19, 1986
Gender:
Location:: Virginia, USA
Interests:: Hm, you ask me what interests me and honestly I could go on for pages with this one. Anime is a large part of my life as far as hobbies go. The rest of my interests are all over the place and typically change so often there's no need to list them here.<br /><br />Except of course, programming. As of right now, the only language that I'm truly proficient in is VB.NET, but I've had brush ins with PHP and Java, and I'm currently learning C/C++ and C#. I try to help around </DIC> as I can, but there are a lot of things I'm still learning myself.
Years Programming:: 5
Programming Languages:: (X)HTML, CSS, PHP, VB.NET, Java, C (learning), C++ (learning), C# (learning)