Cabri Geometry---87126





(一): Constructions with the Compasses Alone

(二): Curve as Envelope of Lines

(三): Orthogonal Circles

(四): tangents

(五): symmetry

(六): Linkage

(七): Van Schooten's Locus Problem

(八): Epicycloids and Hypocycloids

(九): Curves Meeting Orthogonally

(十): Deltoid

(十一): Steiner's Porism


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