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105-11-10-同心圓

Sequence[ <Expression>, <Variable>, <Start Value>, <End Value>, <Increment> ] ★同心圓 Sequence[circle[A,i],i,1, n] Sequence[segment[A,A+(n*cos(i*2*pi/m),n*sin(i*2*pi/m))], i, 1, m] Sequence[segment[A,A+(n*cos(t),n*sin(t))], t, 0,2*pi, 2*pi/m]