Question regarding digits in base 2

  • Context: Undergrad 
  • Thread starter Thread starter GridironCPJ
  • Start date Start date
  • Tags Tags
    Base
Click For Summary
SUMMARY

The discussion centers on the equivalence of decimal strings in base 2 and their representation in the range [0, 1]. It establishes that certain repeating binary fractions, such as 0.11111... in base 2, equate to 1, similar to how 0.9999... equals 1 in base 10. Additionally, it highlights that 0.0111... in base 2 is equivalent to 0.1 in decimal. The conversation emphasizes the importance of understanding base conversions for solving related mathematical problems.

PREREQUISITES
  • Understanding of base conversions, specifically between binary (base 2) and decimal (base 10).
  • Familiarity with repeating decimals and their equivalences in different bases.
  • Basic knowledge of fractional representations in various numeral systems.
  • Ability to interpret mathematical notation and concepts related to number theory.
NEXT STEPS
  • Research the concept of repeating decimals in binary and their decimal equivalents.
  • Learn about base conversion techniques, particularly from binary to decimal.
  • Explore the mathematical proofs behind the equivalence of repeating fractions in different bases.
  • Study the implications of number representation in computer science, especially in binary systems.
USEFUL FOR

Mathematicians, computer scientists, students learning about numeral systems, and anyone interested in understanding the properties of numbers in different bases.

GridironCPJ
Messages
44
Reaction score
0
Suppose we have a decimal string in base 2 (ex: 0.10111000...) then are there any of these that equal the same number in [0, 1]? I was never formally introduced to anything like this, yet I'm being asked questions involving base 2, base 3, etc. If someone could answer this, it would help me solve a problem involving such a fact.
 
Mathematics news on Phys.org
Perhaps, you want to know how to change base from 2 to decimal?

http://mathbits.com/mathbits/compsci/Introduction/frombase10.htm

http://www.mathpath.org/concepts/Num/frac.htm

From that, can you conclude whether they can be same??
 
Last edited by a moderator:
Just as, in base 10, 0.9999...= 1 so, in base 2, 0.11111...= 1.

Similarly, in base 10, 0.49999...= 0.5 and, in base 2, 0.0111...= 0.1 and so forth.
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 55 ·
2
Replies
55
Views
7K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 15 ·
Replies
15
Views
5K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 5 ·
Replies
5
Views
2K