C++ Neural Networks and Fuzzy Logic: Preface

     else

          cout<<"\n pattern= "<

          "  output = "<

          "  discrepancy occurred";

     }

cout<<"\n\n";

int patrn2[]= {0,1,0,1};

h1.activation(patrn2);

for(i=0;i<4;i++)

     {

     if (h1.output[i] == patrn2[i])

          cout<<"\n pattern= "<

C++ Neural Networks and Fuzzy Logic:Preface

Notes on the Header File Hop.h

58

---

          "  output = "<

     else

          cout<<"\n pattern= "<

          "  output = "<

          "  discrepancy occurred";

       }

}

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 IDG Books Worldwide, Inc.

C++ Neural Networks and Fuzzy Logic:Preface

Notes on the Header File Hop.h

59

---

C++ Neural Networks and Fuzzy Logic

by Valluru B. Rao

MTBooks, IDG Books Worldwide, Inc.

ISBN: 1558515526   Pub Date: 06/01/95

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Comments on the C++ Program for Hopfield Network

Note the use of the output stream operator cout<< to output text strings or numerical output. C++ has istream

and ostream classes from which the iostream class is derived. The standard input and output streams are cin

and cout, respectively, used, correspondingly, with the operators >> and <<. Use of cout for the output stream

is much simpler than the use of the C function printf. As you can see, there is no formatting suggested for

output. However, there is a provision that allows you to format the output, while using cout.

Also note the way comments are introduced in the program. The line with comments should start with a

double slash //. Unlike C, the comment does not have to end with a double slash. Of course, if the comments

extend to subsequent lines, each such line should have a double slash at the start. You can still use the pair, /*

at the beginning with */ at the end of lines of comments, as you do in C. If the comment continues through

many lines, the C facility will be handier to delimit the comments.

The neurons in the network are members of the network class and are identified by the abbreviation nrn. The

two patterns, 1010 and 0101, are presented to the network one at a time in the program.