M-File Help: circle | View code for circle |
Compute points on a circle
circle(C, R, opt) plots a circle centred at C (1x2) with radius R on the current axes.
x = circle(C, R, opt) is a matrix (2xN) whose columns define the coordinates [x,y] of points around the circumferance of a circle centred at C (1x2) and of radius R.
C is normally 2x1 but if 3x1 then the circle is embedded in 3D, and x is Nx3, but the circle is always in the xy-plane with a z-coordinate of C(3).
'n', N | Specify the number of points (default 50) |
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