👉 In mathematics, a knot is a curve in three-dimensional space that cannot be smoothly deformed into another shape without crossing itself. Knots can have loops or spirals as their boundary. For example: - The circle (a.k.a. a simple closed curve) with radius 1 and center at the origin (0, 0, 0), which is an example of a knot. - The helix (a type of spiral that has many twists), where each twist is a line
