Programming Forums > Projects > Show Off Your Open Source Projects

stevengs · Dec 5th, 2005, 4:44 PM

Quote:

Originally Posted by DaWei

Representations of values of some absolute nature in this base or that base only represent "compression" in terms of the presentation with some particular medium or another. Presenting decimal numbers in binary representation by restraining oneself to the use of two symbols is entirely artificial. "Compressing" information by presenting it in a medium with more available symbols than the actual storage medium has is every bit as artificial and gains only that advantage expressed by the word, "nada." Compression (lossless) is the process of removing redundancy. Reducing one's thought processes by refusing to think is not compression; it's excision.

We've been through this (mis)concept(ion) before, Sane. It is like when a small child squishes his broccoli flat and spreads it out real thin over the plate... it is all still there, no loss of mass, just a new form. Nod to show you understand.

I don't know what else is necessary...

Sane · Dec 5th, 2005, 5:08 PM

Stevengs, I understand that the data is represented in a vaster medium: ascii(256 types) vs. numbers (10 types).

But that's besides the point here... If we are talking about a single-method representation of data such as a word document, a number represents just as many bytes as a character does, 1. So if a compression program that was simply designed to take a document containing a large strand of numbers, and converted it to base 225. It would indeed be "compressed".

DaWei · Dec 5th, 2005, 5:30 PM

Have you encountered the compressed reality of the term, "BS", versus the just plain ol' wasteful, "Bullshit"???

Sane · Dec 5th, 2005, 5:43 PM

Pardon me?

DaWei · Dec 5th, 2005, 6:49 PM

You are an intelligent young person. You are uninformed. That post intentionally has things regarding compression in it. Think about it. I am not intentionally denigrating you. If you'd like more detailed expressions, post back. If not, forget it.

nnxion · Dec 6th, 2005, 5:30 AM

Quote:

Originally Posted by DaWei

Have you encountered the compressed reality of the term, "BS", versus the just plain ol' wasteful, "Bullshit"???

Wow that saves like 6 characters from 8! That's great compression David

MBirchmeier · Dec 6th, 2005, 9:29 AM

The summary of it is if 'saving' the number to pretty much anything other than a text file there is no 'compression' taking place

The binary sequence

0x0110 0100

can either be represented as:
(character) : D
(int) : 100
(hex int) : 64

the (int) type doesn't save any space over (char) unless you're talking screen space.... both are 8 bits in the memory map.

I'm sure I added some confusion to this with my talks earlier...

when using absurdly large numbers storing them in a 'standard' type isn't done, so I offered ways of doing it differently (than ascii strings or base 235 strings), with little regaurd to the original topic.

bah... details

-MBirchmeier

Kilo · Dec 8th, 2005, 11:34 AM

this is a project i did for school(using << hex << && << dec <<):

(Toggle Plain Text)

#include <iostream>
#include <stdlib.h>
#include <iomanip.h>

int main()
{
        
        char capital,small;
                
        for(capital='A',small='a';capital<='Z';capital++,small++)
        {
                cout << capital;
                cout << hex << setw(10) << static_cast < int > (capital);
                cout << dec << setw(10) << static_cast < int > (capital);
                cout << "          " << small;
                cout << hex << setw(10) << static_cast < int > (small);
                cout << dec << setw(10) << static_cast < int > (small) << endl;
        }
        
        
        return 0;
}

seems to be easier then these other methods? (in opinion)

Dec 5th, 2005, 5:08 PM	#12
Sane Programming Guru Join Date: Apr 2005 Location: Waterloo, Ontario Posts: 2,075 Rep Power: 6	Stevengs, I understand that the data is represented in a vaster medium: ascii(256 types) vs. numbers (10 types). But that's besides the point here... If we are talking about a single-method representation of data such as a word document, a number represents just as many bytes as a character does, 1. So if a compression program that was simply designed to take a document containing a large strand of numbers, and converted it to base 225. It would indeed be "compressed". __________________ Looking for tough programming challenges? Try participating in Sane's Monthly Algorithms Challenges! Composing Techno is a little side hobby of mine. Techno by DJ Sane. All free for download.

Dec 5th, 2005, 5:30 PM	#13
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	Have you encountered the compressed reality of the term, "BS", versus the just plain ol' wasteful, "Bullshit"??? __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Dec 5th, 2005, 5:43 PM	#14
Sane Programming Guru Join Date: Apr 2005 Location: Waterloo, Ontario Posts: 2,075 Rep Power: 6	Pardon me? __________________ Looking for tough programming challenges? Try participating in Sane's Monthly Algorithms Challenges! Composing Techno is a little side hobby of mine. Techno by DJ Sane. All free for download.

Dec 5th, 2005, 6:49 PM	#15
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	You are an intelligent young person. You are uninformed. That post intentionally has things regarding compression in it. Think about it. I am not intentionally denigrating you. If you'd like more detailed expressions, post back. If not, forget it. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers Last edited by DaWei; Dec 5th, 2005 at 7:06 PM.

Dec 8th, 2005, 11:34 AM	#18
Kilo Expert Programmer Join Date: Nov 2005 Location: In Pink Clam? Posts: 542 Rep Power: 0	this is a project i did for school(using << hex << && << dec <<): (Toggle Plain Text) #include <iostream> #include <stdlib.h> #include <iomanip.h> int main() { char capital,small; for(capital='A',small='a';capital<='Z';capital++,small++) { cout << capital; cout << hex << setw(10) << static_cast < int > (capital); cout << dec << setw(10) << static_cast < int > (capital); cout << " " << small; cout << hex << setw(10) << static_cast < int > (small); cout << dec << setw(10) << static_cast < int > (small) << endl; } return 0; } #include <iostream> #include <stdlib.h> #include <iomanip.h> int main() { char capital,small; for(capital='A',small='a';capital<='Z';capital++,small++) { cout << capital; cout << hex << setw(10) << static_cast < int > (capital); cout << dec << setw(10) << static_cast < int > (capital); cout << " " << small; cout << hex << setw(10) << static_cast < int > (small); cout << dec << setw(10) << static_cast < int > (small) << endl; } return 0; } seems to be easier then these other methods? (in opinion) __________________ "When in Rome, Do as the Romans Do" "Beauty is in the eye of the BEER holder" "Save your breath your going to need it for your blow up doll later" SearchLores.org

Dec 6th, 2005, 9:29 AM	#17
MBirchmeier Hobbyist Programmer Join Date: Oct 2005 Posts: 211 Rep Power: 4	The summary of it is if 'saving' the number to pretty much anything other than a text file there is no 'compression' taking place The binary sequence 0x0110 0100 can either be represented as: (character) : D (int) : 100 (hex int) : 64 the (int) type doesn't save any space over (char) unless you're talking screen space.... both are 8 bits in the memory map. I'm sure I added some confusion to this with my talks earlier... when using absurdly large numbers storing them in a 'standard' type isn't done, so I offered ways of doing it differently (than ascii strings or base 235 strings), with little regaurd to the original topic. bah... details -MBirchmeier

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Programming Forums > Projects > Show Off Your Open Source Projects

Number to hexadecimal in C++