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Thread: I need to learn math
 05142011, 04:22 AM #1Senior Member
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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
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"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
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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
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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
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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
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Ya that book looks pretty interesting. thanks.

 05142011, 06:22 AM #8
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 05142011, 10:10 AM #10
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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,
JosBuild a wall around Donald Trump; I'll pay for it.
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