Python Coding Challenge - Question with Answer (ID 190826)

 

Explanation:

1. Code

print(abs(3+4j))

2. 3 + 4j — Complex Number

In Python, j represents the imaginary unit.

A complex number has the form:

a + bj

Here:

Real part = 3

Imaginary part = 4

So:

3 + 4j

is a complex number.

3. abs() — Finding Magnitude

For a complex number:

abs(a + bj)

calculates its magnitude using:

√(a² + b²)

For 3 + 4j:

√(3² + 4²)

= √(9 + 16)

= √25

= 5

4. print() — Displaying the Result

After calculating:

abs(3+4j)

Python gets:

5.0

Then print() displays it.

5. Final Output

5.0

Book: Numerical Python for Astronomy and Astrophysics