Vectors in MATLAB

📐 Vectors in MATLAB

MATLAB is developed by MathWorks.

🔹 What Is a Vector in MATLAB?

A vector is a collection of elements arranged in one row or one column.

• Row Vector → 1 × n

• Column Vector → n × 1

1️⃣ Creating Vectors

🔸 Row Vector

Output

🔸 Column Vector

Output

🔸 Using Colon Operator

Output

🔸 With Step Size

Output

2️⃣ Vector Indexing & Accessing Elements

Output

📌 Indexing in MATLAB starts from 1.

3️⃣ Vector Operations

🔸 Addition & Subtraction

Output

🔸 Element-wise Multiplication

Output

🔸 Scalar Operation

Output

4️⃣ Common Vector Functions

 Length of Vector

 Sum & Mean

 Maximum & Minimum

5️⃣ Transpose of a Vector

Output

6️⃣ Logical Operations on Vectors

Output

⚠️ Important Notes

• Vectors must be of same size for element-wise operations

• Use .*, ./, .^ for element-wise math

• MATLAB indexing starts at 1

🎯 Interview Questions: Vectors in MATLAB

 Q1. What is a vector in MATLAB?

Answer: A one-dimensional array of elements.

 Q2. Difference between row and column vector?

Answer:
Row vector → 1×n, Column vector → n×1.

 Q3. How do you create a vector from 1 to 10?

Answer: v = 1:10;

 Q4. How do you access the 4th element of a vector v?

Answer: v(4)

 Q5. What operator is used for element-wise multiplication?

Answer: .*

 Q6. How do you find the length of a vector?

Answer: Using length().

 Q7. What is the index of the first element in MATLAB?

Answer: 1

✅ Summary

• Vectors are 1D arrays

• Can be row or column

• Support fast mathematical operations

• Widely used in engineering & data analysis