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In rectangular coordinates you subtract or add the x together and the y- together. The operations have meaning only if you are calculating the mid-point of a segment or the coordinates of a point that divides a segment in a certain ratio, or the barycenter of a distribution of points.
As to the question concerning vectors in polar coordinates, I do not think there exits a meaningful instance where you have to add the radii AND the angles. Radii add or subtract if the points are collinear (same angle). Angles add or subtract if the point are on a circle (same radius)/
Posted on Oct 17, 2013
If one or both numbers are in polar form, convert it/them to rectangular. Once both numbers are in rectangular form, simply add the two components separately: Add the two x components together, and add the two y components together.
If you're asking how to do this on a particular calculator, please specify the make and model.
Posted on Oct 15, 2013
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No you cannot. An ordered pair made up of a radius and an angle is a vector. And you do not add nor subtract vectors as you would scalar (non vector) values.
Posted on Sep 03, 2011
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