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It could be a circle or a sphere
Time and the distance from a fixed point (the origin) - either in a fixed direction or radially.
geometric unsharpness is fixed by setting the focal radius,etc. while radiographic unsharpness consists of both geometric and film unsharpness.
In an arithmetic series, each term is defined by a fixed value added to the previous term. This fixed value (common difference) may be positive or negative.In a geometric series, each term is defined as a fixed multiple of the previous term. This fixed value (common ratio) may be positive or negative.The common difference or common ratio can, technically, be zero but they result in pointless series.
A circle is the locus of a point which moves such that its distance from a fixed point is constant. .The fixed point is centre and fixed distance is radius of circle. Elements of circle are centre, radius and circumference.
It could be a circle or a sphere
Time and the distance from a fixed point (the origin) - either in a fixed direction or radially.
geometric unsharpness is fixed by setting the focal radius,etc. while radiographic unsharpness consists of both geometric and film unsharpness.
The position of the particle can be given by a number representing the distance of the particle from some fixed reference point (called the origin). This is not enough to describe the motion of the particle since for that you also required the time (or times) at which the particle is at any particular point.
In an arithmetic series, each term is defined by a fixed value added to the previous term. This fixed value (common difference) may be positive or negative.In a geometric series, each term is defined as a fixed multiple of the previous term. This fixed value (common ratio) may be positive or negative.The common difference or common ratio can, technically, be zero but they result in pointless series.
A circle is the locus of a point which moves such that its distance from a fixed point is constant. .The fixed point is centre and fixed distance is radius of circle. Elements of circle are centre, radius and circumference.
Fixed distance markings are white rectangulars marked 300m from the treshold assuming that the aircraft passes the treashold at 50'.
That's a circle. The "fixed point" is the center of the circle, and the constant distance is its radius.
It is the locus of all points such that their distance from a fixed line (the directrix) is the same as their distance from a fixed point which is not on that line (the focus).
Reference point
A point is a geometric element that has position but no extension. It is an exact fixed location having no length, width, or depth.
A set of all points is how various shapes are made in geometry. Lines are sets of points, and so are surfaces. Circles are sets of all points that are a fixed distance from a central point. All geometric shapes are made from sets of all points.