(許意偵個人作業)

   

      作業1A1.GSP

      Construct two identical cardioids each rotating about its cusp meeting orthogonally on the line segment joining the cusps.

      作業2

  Construct the tooth-wheel coupling between the deltoid and the cardioid

 

作業3

 

      作業4

      Let AB be a fixed diameter of a circle O. Through a variable point C on O construct two cardioids with AB and BC as tangents and with the cusps at the distance of 2AB apart.       

    

      作業5

Construct the tooth-wheel coupling between the trochoids.

     作業6

Construct an animation displaying a nephroid and a cardioid meeting orthogonally on a circle

              

      作業7

Given a fixed deltoid, construct an animation displaying its circumscribed nephroid.

      作業8

Given a fixed nephroid, construct an animation displaying its inscribed deltoid

      作業9

Construct an animation displaying a deltoid sliding along two orthogonal straight
lines.

      作業10

Construct a deltoid tangent to the sides of a given triangle

 

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