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( 7 months ago )

Equation for testing if a point is inside a circle

General Tech QA/Testing
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Mike Franklin

User

( 7 months ago )

In general, x and y must satisfy (x - center_x)^2 + (y - center_y)^2 < radius^2.

Please note that points that satisfy the above equation with < replaced by == are considered the points on the circle, and the points that satisfy the above equation with < replaced by > are considered the outside the circle.

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James Watson

User

( 7 months ago )

If you have a circle with center (center_x, center_y) and radius radius, how do you test if a given point with coordinates (x, y) is inside the circle?

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