Contents xi Logistic Growth 159 Rerunning the Model with SIMULINK 166 Linear Economic Models 168 Linear Programming 173 The360°Pendulum 180 Numerical Solution of the Heat Equation 184 A Finite Difference Solution 185 The Case of Variable Conductivity 189 A SIMULINK Solution 191 Solution with pdepe 194 ★A Model of Traffic Flow 196 Practice Set C:Developing Your MATLAB Skills 204 10 MATLAB and the Internet 214 MATLAB Help on the Internet 214 Posting MATLAB Programs and Output 215 M-Files,M-Books,Reports,and HTML Files 215 Configuring Your Web Browser 216 Microsoft Internet Explorer 216 Netscape Navigator 216 11 Troubleshooting 218 Common Problems 218 Wrong or Unexpected Output 218 Syntax Error 220 Spelling Error 223 Error Messages When Plotting 223 A Previously Saved M-File Evaluates Differently 224 Computer Won't Respond 226 The Most Common Mistakes 226 Debugging Techniques 227 Solutions to the Practice Sets 235 Practice Set A 235 Practice Set B 246 Practice Set C 266Contents xi Logistic Growth159 Rerunning the Model with SIMULINK 166 Linear Economic Models 168 Linear Programming 173 The 360◦ Pendulum 180 Numerical Solution of the Heat Equation 184 A Finite Difference Solution 185 The Case of Variable Conductivity 189 A SIMULINK Solution 191 Solution with pdepe 194 A Model of Traffic Flow 196 Practice Set C: Developing Your MATLAB Skills 204 10 MATLAB and the Internet 214 MATLAB Help on the Internet 214 Posting MATLAB Programs and Output 215 M-Files, M-Books, Reports, and HTML Files 215 Configuring Your Web Browser 216 Microsoft Internet Explorer 216 Netscape Navigator 216 11 Troubleshooting 218 Common Problems 218 Wrong or Unexpected Output 218 Syntax Error 220 Spelling Error 223 Error Messages When Plotting 223 A Previously Saved M-File Evaluates Differently 224 Computer Won’t Respond 226 The Most Common Mistakes 226 Debugging Techniques 227 Solutions to the Practice Sets 235 Practice Set A 235 Practice Set B 246 Practice Set C 266