Complex numbers have a real and an imaginary part. The magnitude of a complex number, also known as the modulus or absolute value, is a measure of how far the number is from the origin in the complex plane.
Imagine the complex plane is like a big ol' coordinate grid. The real part is on the x-axis, and the imaginary part is on the y-axis. The magnitude of a complex number is like how far the number is from the origin, which is at (0, 0).
For example, the complex number 3 + 4i has a magnitude of 5, because it's 5 units away from the origin.
Want to know more about the other parts of complex numbers? Check out our arguments page for more information.
You can also learn about angles in the complex plane, because, well, they're pretty important.
The magnitude of a complex number is important because it's used in all sorts of cool math stuff, like finding distances between two complex numbers, and figuring out if one complex number is bigger or smaller than another.
But, let's be real, the magnitude is just plain cool, because it helps you visualize complex numbers in a whole new way. It's like, whoa, this number is way more interesting than I thought it was!
Want to know more about the power of complex numbers? It's like, totally a thing, and it's really, really cool.