Results 1 to 10 of 10
Thread: I need to learn math
 05142011, 04:22 AM #1Senior Member
 Join Date
 Feb 2009
 Posts
 182
 Rep Power
 6
I need to learn math
Hi, I needed to solve a problem today and someone told me the answer was converting a number to an Octal Base number. I didn't even think about that because I didn't know what one was. People on another forum told me that is covered in like 8th grade math. So I was wondering, does anyone know of some good books that I can learn math from from beginning, to algebra to calculus? Or what math I need to know? I don't want this to happen again where my math skills are so bad that I cannot even solve simple programs due to lack of math knowledge. Thank you. Derek:D
 05142011, 04:36 AM #2Moderator
 Join Date
 Feb 2009
 Location
 New Zealand
 Posts
 4,568
 Rep Power
 12
"Math" is a ... big ... topic! Wikipedia is decent on simple stuff (but cr@p imao for complicated concepts, unlike the physics articles, for instance, which are good). The octal representation of numbers is covered in Octal  Wikipedia, the free encyclopedia
For general coverage you might want to have a look at Wikibooks subject:mathematics
 05142011, 04:37 AM #3
 Join Date
 Jan 2011
 Location
 Richmond, Virginia
 Posts
 3,069
 Blog Entries
 3
 Rep Power
 8
I don't know about any book, try googling around for algebra and calc books.
Octal isn't that hard to understand, decimal(base 10) is what we use and it counts like this
Java Code:0,1,2,3,4,5,6,7,8,9,10
Java Code:0,1,2,3,4,5,6,7,10,11,12,13,14,15,16,17,20
So 10 in octal would be 8, the number
352 in octal is calculated similarly.
352 in decimal is so natural to us but it's similar, you do
Java Code:10^2*3 + 10* 5 + 2
Java Code:8^2*3 + 8*5 + 2 == 192 + 40 + 2 ==234
Java Code:a7a6a5a4...a1a0
Java Code:base^7*a7 + base^6*a6 ... base^1*a1+base^0*a0
 05142011, 05:06 AM #4Senior Member
 Join Date
 Feb 2009
 Posts
 182
 Rep Power
 6
Never mind, I just purchased a ridiculous amount of math books from amazon. I should be good now. thanks. Derek
Thanks Sunde887. I hope you are doing well! thanks. Derek
 05142011, 05:11 AM #5
 Join Date
 Jan 2011
 Location
 Richmond, Virginia
 Posts
 3,069
 Blog Entries
 3
 Rep Power
 8
A fun book that I'm reading right now is Amazon.com: Code (DVMPS General) (0790145050502): Charles Petzold: Books
It goes over the number systems pretty well, and moves onto more detailed hardware stuff if that interests you(logic gates, adders, etc)
 05142011, 05:41 AM #6Senior Member
 Join Date
 Feb 2009
 Posts
 182
 Rep Power
 6
Ya that book looks pretty interesting. thanks.

 05142011, 06:22 AM #8
 Join Date
 Jan 2011
 Location
 Richmond, Virginia
 Posts
 3,069
 Blog Entries
 3
 Rep Power
 8

 05142011, 10:10 AM #10
 Join Date
 Sep 2008
 Location
 Voorschoten, the Netherlands
 Posts
 13,725
 Blog Entries
 7
 Rep Power
 21
If you're really fascinated by numbers, read this one, it's written by John Conway, the inventor of 'life', the cellular automata game ... (it's one of the more 'fundamental' books in the field).
kind regards,
Joscenosillicaphobia: the fear for an empty beer glass
Similar Threads

Trying to relearn
By Angry@Java in forum IntroductionsReplies: 2Last Post: 05052011, 02:22 AM 
How did you learn?
By code_newbie in forum New To JavaReplies: 17Last Post: 12252010, 02:25 AM 
Create Math.sin without math.sin
By vudoo in forum New To JavaReplies: 11Last Post: 12072010, 07:23 AM 
To learn or not learn?
By Fuzzman3000 in forum New To JavaReplies: 5Last Post: 07092010, 07:11 AM 
Need ur help to learn
By yamuna.java in forum Web FrameworksReplies: 2Last Post: 06062010, 04:37 PM
Bookmarks