Lets graph the function
r(𝜃) = ecos(𝜃) - 2 * cos(4𝜃) + sin5(𝜃/12)
where 𝜃 ranges through the domain [0,75.4]
The first thing to do is to define the boundaries of the 𝜃 interval, the number of points to be generated and the step between each point measured by the angle around the origin of the Pole.
1. Enter "Lower bound", "Upper bound", "# of points" and "Step" in cells B2, B3, B4 and B5 respectively.
2. Enter the number 0 in cell C2 and the number 75.4 in cell C3.
3. Enter the number 10 in cell C4. This will define the number of points that will make up the graph. The more points we have the more accurate the shape of the curve will be (more about this later).
4. Enter the following formula in cell C5
= (C3 - C2) / (C4 - 1)
The worksheet should look like this: