The image you uploaded shows the number 1.7231i. This is a complex number where 1.7231 is the imaginary part, and the number can be represented as $0 + 1.7231i$.

In mathematics:

• The letter "i" represents the imaginary unit, defined as $i = \sqrt{-1}$.
• Complex numbers consist of a real part and an imaginary part, where $a + bi$ is the general form (with $a$ being the real part and $bi$ the imaginary part).

Since the real part is $0$, this number purely lies on the imaginary axis of the complex plane.

Would you like more details on complex numbers, or any specific explanation?

Related Questions:

1. What is the significance of the imaginary unit "i" in complex numbers?
2. How can you represent complex numbers on the complex plane?
3. What is the magnitude (modulus) of a complex number, and how do you calculate it?
4. Can complex numbers be used in real-world applications?
5. What happens when you multiply two imaginary numbers?

Tip:

When working with complex numbers, remember that multiplying $i \times i$ results in $-1$.