- #1
Miike012 said:From this equation
x2 + y2 = 2y
I was wondering how in the solutions manual it was decided that 0≤z≤1 ?
Edit:
Don't read... I was looking at a solution to a different problem
Cylindrical coordinates are a type of coordinate system used in mathematics and physics to represent points in three-dimensional space. They are based on the distance from a central axis, an angle from a reference direction, and the height above a reference plane.
In cylindrical coordinates, a point is represented by its distance from a central axis, an angle from a reference direction, and a height above a reference plane. In Cartesian coordinates, a point is represented by its distance from the x, y, and z axes. Cylindrical coordinates are better suited for describing objects with cylindrical symmetry, while Cartesian coordinates are more commonly used for general three-dimensional space.
Cylindrical coordinates are useful for simplifying calculations in problems involving cylindrical symmetry, such as in electromagnetism or fluid dynamics. They also allow for a more intuitive understanding of certain physical systems, such as rotating objects or cylindrical containers.
To convert from cylindrical to Cartesian coordinates, use the following formulas: x = r * cos(θ), y = r * sin(θ), z = z. To convert from Cartesian to cylindrical coordinates, use: r = √(x^2 + y^2), θ = arctan(y/x), z = z. It is also important to note that the ranges of values for θ and z may need to be adjusted depending on the problem.
Cylindrical coordinates are commonly used in physics and engineering to describe the motion and properties of rotating objects, such as wheels or turbines. They are also used in calculating the flow of fluids in pipes or channels, and in analyzing the electromagnetic fields of cylindrical antennas or solenoids.