What is Decimal 8 Math and Why is it Considered the Hardest?

  • Context: High School 
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Discussion Overview

The discussion revolves around the concept of "decimal 8 math," which a participant's cousin described as a challenging mathematical system. The inquiry seeks to clarify whether this refers to a legitimate mathematical concept, specifically questioning if it relates to base-8 or octal number systems.

Discussion Character

  • Exploratory
  • Debate/contested

Main Points Raised

  • One participant asks for clarification on what "decimal 8 math" is and its applications, noting that it was described as harder than calculus.
  • Another participant suggests that "decimal 8" may actually refer to base-8, as the term "decimal" typically implies base-10.
  • A participant reiterates the possibility that "decimal" was used to simplify the explanation for someone unfamiliar with the term "base."
  • One participant identifies "decimal 8 math" as potentially referring to the octal number system, arguing that it is not inherently difficult and explaining its relation to binary and hexadecimal systems.
  • A later reply humorously questions the cousin's assertion about the difficulty of base-8 math, suggesting it may have been a jest.

Areas of Agreement / Disagreement

Participants express uncertainty about the terminology used and whether "decimal 8" accurately describes base-8 or octal math. There is no consensus on the difficulty level of the octal system, with differing opinions on its complexity.

Contextual Notes

Some participants note that the discussion hinges on the interpretation of terms like "decimal" and "base," which may lead to confusion. The relationship between octal, binary, and hexadecimal systems is mentioned, but no mathematical proofs or examples are provided to support claims about difficulty.

The_Z_Factor
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Hi everybody, I want to ask about this, and I am not exactly sure what 'type' of math this is, so I put it under general math..sorry if its not the correct place for it.

Anyways, about a year ago my cousin who went to Georgia Tech, was talking to me about math. I asked him what he thought the most complicated math was, and he says, "Well I think decimal 8 math is the hardest". I asked him what it was and he told me that its a number system or a way of doing math using decimals of 8 instead of 10 like our normal number system. He never took the class, he just said its harder than calculus.

So, what is this math? And what is it used for?
 
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Did he mean base-8? Decimal itself implies base-10 you can't have decimal 8 I don't think.
 
Feldoh said:
Did he mean base-8? Decimal itself implies base-10 you can't have decimal 8 I don't think.

That must have been what he said then. It was at least a year ago so I don't exactly remember, but I do remember him mentioning that all the problems are based on decimals of 8 instead of 10. He might have said decimal to make it easier for me to understand, being that I most likely had no clue what he would have meant had he said "base". Thanks for correcting me though.
 
It sounds like he's talking about the octal number system, but there's nothing remotely hard about that. Octal represents numbers in powers of 8.

You may have heard about hexadecimal, which represents numbers in powers of 16. Hexadecimal is useful because it provides a concise way to talk about binary numbers, as it's easy to write down a hexadecimal number by just taking the binary number 4 bits at a time:

101101101111 binary is

B6F hexadecimal.

Octal is also useful, because you can take the bits three at a time:

101101101111 binary is

5557 octal

Octal numbers are used in UNIX to set permissions with chmod, since each group might have read, write, or execute permissions (i.e., 3 bits).
 
He was at Georgia Tech and said he thought "base 8" was the hardest math? He was putting you on!
 

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