Q: Making a circle in a graph using excel I want to make something like this in an excel graph but I'm having some issues.

I use this to define the x and y position of every point

But sadly I dont'get the right result.

Does anyone have a solution to this problem?
Thanks!

A: Your approach
Using your formulation, I achieve below by allowing more points (I've used 360, as this conveniently ties in with an alternative approach below)...

Here is the same with just 50 points:

With just 4 points, incrementing by ~60 degrees around the half-circle (three times, since it starts at y=0)  to get this:

Below I show an alternative approach with additional flexibility in being able to (explicitly) specify the radius and centre.
Screenshot below / this refer:
x values:
=$E$2*COS($C7*PI()/180)+$E$3

y values:
=$E$2*SIN($C7*PI()/180)+$E$4


Tips
Ensure x and y axes span same range (e.g. [-5,5], or [-10,10]), and then ensure graph itself has same width & height (otherwise graph may be distorted and appear as an oval or something).
*courtesy S. Kuchnicki (2020), source
