# Circle

From the equation of a circle:

Calculate the coordinates of the center of the circle S[x0, y0] and radius of the circle r.

Result

x0 =  -5
y0 =  5
r =  4

#### Solution:

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#### To solve this example are needed these knowledge from mathematics:

For Basic calculations in analytic geometry is helpful line slope calculator. From coordinates of two points in the plane it calculate slope, normal and parametric line equation(s), slope, directional angle, direction vector, the length of segment, intersections the coordinate axes etc. Looking for help with calculating roots of a quadratic equation? Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

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