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# How do you write a triple integral in spherical coordinates?

## How do you write a triple integral in spherical coordinates?

To evaluate a triple integral in spherical coordinates, use the iterated integral ∫θ=βθ=α∫ρ=g2(θ)ρ=g1(θ)∫u2(r,θ)φ=u1(r,θ)f(ρ,θ,φ)ρ2sinφdφdρdθ.

What is Z in spherical coordinates?

z=ρcosφr=ρsinφ z = ρ cos ⁡ φ r = ρ sin ⁡ and these are exactly the formulas that we were looking for. So, given a point in spherical coordinates the cylindrical coordinates of the point will be, r=ρsinφθ=θz=ρcosφ r = ρ sin ⁡ φ θ = θ z = ρ cos ⁡

### How Cartesian and polar coordinates are related?

In Cartesian coordinates there is exactly one set of coordinates for any given point. With polar coordinates this isn’t true. In polar coordinates there is literally an infinite number of coordinates for a given point. For instance, the following four points are all coordinates for the same point.

How do you convert to polar coordinates?

To convert from Cartesian Coordinates (x,y) to Polar Coordinates (r,θ):

1. r = √ ( x2 + y2 )
2. θ = tan-1 ( y / x )

## How do you integrate with polar coordinates?

The area dA in polar coordinates becomes rdrdθ. Use x=rcosθ,y=rsinθ, and dA=rdrdθ to convert an integral in rectangular coordinates to an integral in polar coordinates. Use r2=x2+y2 and θ=tan−1(yx) to convert an integral in polar coordinates to an integral in rectangular coordinates, if needed.

How do you write an equation for spherical coordinates?

To convert a point from spherical coordinates to Cartesian coordinates, use equations x=ρsinφcosθ,y=ρsinφsinθ, and z=ρcosφ. To convert a point from Cartesian coordinates to spherical coordinates, use equations ρ2=x2+y2+z2,tanθ=yx, and φ=arccos(z√x2+y2+z2).

### What is the difference between polar and spherical coordinates?

Spherical coordinates define the position of a point by three coordinates rho ( ), theta ( ) and phi ( ). is the distance from the origin (similar to in polar coordinates), is the same as the angle in polar coordinates and is the angle between the -axis and the line from the origin to the point.