Give the exact number of multiplications performed in the following segment of an algorithm assuming a₁, a2,..., an are positive real numbers and n = 13. for i=1 to n for j=i+1 to n tij =iaj;

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
Question
**Title: Calculation of Multiplications in Algorithm Segment**

**Description:**

This section aims to determine the exact number of multiplications performed in a specific segment of an algorithm. The algorithm deals with a series of computations involving positive real numbers \(a_1, a_2, \ldots, a_n\) where \(n\) is predefined as 13.

**Algorithm Segment:**

1. **Outer Loop:** Iterate over variable \(i\) from 1 to \(n\).
2. **Inner Loop:** For each \(i\), iterate over variable \(j\) from \(i + 1\) to \(n\).
3. **Computation:** For each combination of \(i\) and \(j\), compute \(t_{ij} = i \cdot a_j\).

**Explanation:**

- **Outer Loop (for \(i = 1\) to \(n\)):** Begins the iteration with \(i = 1\) and progresses to the final value of \(n\).
  
- **Inner Loop (for \(j = i + 1\) to \(n\)):** For each value of \(i\), \(j\) starts at \(i + 1\), ensuring that no multiplication occurs when \(i = j\).

- **Multiplication Count:** The computation \(t_{ij} = i \cdot a_j\) involves one multiplication for each pair of \((i, j)\) within the defined loop bounds.

To calculate the total number of multiplications:

- For \(i = 1\), \(j\) ranges from 2 to 13, resulting in 12 multiplications.
- For \(i = 2\), \(j\) ranges from 3 to 13, resulting in 11 multiplications.
- Continue this pattern until
- For \(i = 12\), \(j\) ranges from 13 to 13, resulting in 1 multiplication.
- No multiplication occurs for \(i = 13\), as \(j\) would start at 14, which is outside the loop range.

The total number of multiplications is the sum of an arithmetic series: \(12 + 11 + \ldots + 1\), which equals 78.

This simple segment provides insight into nested loops and efficient calculation within algorithmic contexts, crucial for understanding algorithm efficiency.
Transcribed Image Text:**Title: Calculation of Multiplications in Algorithm Segment** **Description:** This section aims to determine the exact number of multiplications performed in a specific segment of an algorithm. The algorithm deals with a series of computations involving positive real numbers \(a_1, a_2, \ldots, a_n\) where \(n\) is predefined as 13. **Algorithm Segment:** 1. **Outer Loop:** Iterate over variable \(i\) from 1 to \(n\). 2. **Inner Loop:** For each \(i\), iterate over variable \(j\) from \(i + 1\) to \(n\). 3. **Computation:** For each combination of \(i\) and \(j\), compute \(t_{ij} = i \cdot a_j\). **Explanation:** - **Outer Loop (for \(i = 1\) to \(n\)):** Begins the iteration with \(i = 1\) and progresses to the final value of \(n\). - **Inner Loop (for \(j = i + 1\) to \(n\)):** For each value of \(i\), \(j\) starts at \(i + 1\), ensuring that no multiplication occurs when \(i = j\). - **Multiplication Count:** The computation \(t_{ij} = i \cdot a_j\) involves one multiplication for each pair of \((i, j)\) within the defined loop bounds. To calculate the total number of multiplications: - For \(i = 1\), \(j\) ranges from 2 to 13, resulting in 12 multiplications. - For \(i = 2\), \(j\) ranges from 3 to 13, resulting in 11 multiplications. - Continue this pattern until - For \(i = 12\), \(j\) ranges from 13 to 13, resulting in 1 multiplication. - No multiplication occurs for \(i = 13\), as \(j\) would start at 14, which is outside the loop range. The total number of multiplications is the sum of an arithmetic series: \(12 + 11 + \ldots + 1\), which equals 78. This simple segment provides insight into nested loops and efficient calculation within algorithmic contexts, crucial for understanding algorithm efficiency.
Expert Solution
Step 1

Advanced Math homework question answer, step 1, image 1

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Similar questions
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,