(() Directrix as circle with center A and radius AB. Point F (or C) outside the circle. Click and drag point D around the circle. Point P traces a hyperbola. dmw f99_   L       P @ @ directrixv4zRh4@Lh4%v4zRV@}A  }B WriXp\SKETCH\logo8bi.bAB  A9^ Fu;u]9^u9^u9^IcD RT  @7&j{?CAv`cjG4uc    k!? Fu/uF@?A`EG4t   ED|kBW | l fp#I)iTf?sWhN!H4C*CG4C8!C8!C C`G4dyC'CpG4.lG4DG4dyCx~mC@C  \dG4FK   ?vQ,8=|BH G4\G4B G4$P h4%v4vRh4@Lh4%v4vRf@x~ m3/uF@? m4CCG4ZCCCwCG/C;CdG4+CCgCCp