text: topic "2.1.5 UserEquation";
  [i448;a25;kKO9; $$1,0#37138531426314131252341829483380:structitem]
  [l288;2 $$2,0#27521748481378242620020725143825:desc]
  [0 $$3,0#96390100711032703541132217272105:end]
  [H6;0 $$4,0#05600065144404261032431302351956:begin]
  [i448;a25;kKO9;2 $$5,0#37138531426314131252341829483370:codeitem]
  [ $$0,0#00000000000000000000000000000000:Default]
  [{_} 
  [ {{10000@3 [s0;%% [*@(229)4 UserEquation]]}}&]
  [s3; &]
  [s1;:UserEquation`:`:class: [@(0.0.255) class]_[* UserEquation]_:_[@(0.0.255) public]_[*@3 Exp
  licitEquation]&]
  [s2;%% &]
  [s0; [2 UserEquation permits to enter equations in run time as simple 
  text.]&]
  [s3; &]
  [ {{10000F(128)G(128)@1 [s0;%% [* Constructor Detail]]}}&]
  [s4; &]
  [s5;:UserEquation`:`:UserEquation`(String`,String`,String`): [* UserEquation]([_^String^ S
  tring]_[*@3 name], [_^String^ String]_[*@3 strEquation], [_^String^ String]_[*@3 varHoriz]_
  `=_`"x`")&]
  [s2;%% Creates user equation named [%-*@3 name], with the equation 
  in [%-*@3 strEquation] and being [%-*@3 varHoriz] the variable name 
  that represents the horizontal axis.&]
  [s3;%% &]
  [s3;%% ]]