Question 19 of 21advanced🔍 AnalyzeLong Answer5 marks

Form a base-2 place value system using 'ukasar' and 'urapon' as the digits. Compare this system with that of the Gumulgal's.

Correct Answer

Base-2 Place Value System Using 'ukasar' and 'urapon':

Digits:

  • 'urapon' = 0
  • 'ukasar' = 1

Landmark Numbers: Powers of 2 1, 2, 4, 8, 16, 32, ...

Each position represents a power of 2.

Example: Number 5 'ukasar-urapon-ukasar' = 1×41 \times 4 + 0×20 \times 2 + 1×11 \times 1 = 5

Comparison with Gumulgal's System:

Gumulgal's System (Additive):

  • 'ukasar-ukasar-urapon' = 2 + 2 + 1 = 5
  • No positional significance
  • Requires longer strings for larger numbers

Base-2 System (Positional):

  • Position determines value
  • 'ukasar-ukasar' can mean different values depending on position
  • Example: 11 in binary = 3
  • Can represent any number efficiently using only two symbols

Key Difference: The Gumulgal system is additive (combining 2s and 1s without place value), while the base-2 system is positional (position determines value).

Exercise: Figure it Out (Section 10) | Q: 2 | (Page Page 33)
For More Understanding

Explanation

The chapter describes Gumulgal's system as counting by 2s additively (ukasar=2, urapon=1, with combinations like ukasar-ukasar=4). A base-2 place value system would use these as digits (0 and 1) with positions representing powers of 2. The key innovation of place value systems is that position determines value, making representation more compact and enabling efficient arithmetic operations. The Gumulgal system lacks place value, so representing large numbers requires many repetitions.

Solution Steps

  1. Define the digits: 'urapon' for 0 and 'ukasar' for 1 in the base-2 system.

  2. Identify landmark numbers as powers of 2: 1, 2, 4, 8, 16, 32, ...

  3. Understand that each position represents a power of 2.

  4. Example: Convert 5 to 'ukasar-urapon-ukasar' (1×41 \times 4 + 0×20 \times 2 + 1×11 \times 1 = 5).

  5. Compare: Gumulgal's system is additive (no place value).

  6. Compare: Base-2 system is positional (position determines value).

  7. Conclude: Base-2 system is more efficient for representing large numbers.