1. Exact Differential Equations  
   Robert Israel, Math. Dept., University of British Columbia, Vancouver, B.C., Canada
2. Solving an Exact Ordinary Differential Equation Applet  
   Philip S. Crooke, Math. Dept., Vanderbilt University, Nashville, Tennessee  
3. Exact First-Order Ordinary Differential Equation  
   Eric Weisstein, World of Mathematics, Wolfram Research, Inc., Champaign, IL
4. Integrating Factor Technique
   Mohamed Amine Khamsi, S. O. S. MATHematics, El Paso, TX  
5. Exact First Order Ordinary Differential Equation  
   eFunda, Sunnyvale, CA  
6. Analytic Methods For Exact And Linear Differential Equations  
   Charles Wakefield, University of Texas of the Permian Basin, TX
7. Integrating Factor to Force Exactness  
   Charles Wakefield, University of Texas of the Permian Basin, TX
8. Exact Differential Equations   
   Rita Marie O'Brien, Math. Dept., Navarro College,  Corsicana, TX  
9. Exact Differential Equations, Method of Solution  
   Rita Marie O'Brien, Math. Dept., Navarro College, Corsicana, Texas  
10. Exact and inexact differentials  
    Richard Fitzpatrick, Physics Dept, University of Texas, Austin, TX  
11. Solving Exact Differential Equations  
    Peter Dragovitsch and Ben A. Fusaro, Math. Dept., Florida State Univ., Tallahassee, FL  
12. Exact Differential Equations  
    Larry Green, Math. Dept., Lake Tahoe C. C. , Lake Tahoe, CA  
13. Exact Differential Equations  
    Hajrudin Fejzic, Math. Dept., California State University, San Bernardino, CA  
14. Exact Equations  
    Richard Burns, Math. Dept., Springfield Technical C. C., Springfield, MA  
15. Integrating Factors  
    Robert Israel, Math. Dept., University of British Columbia, Vancouver, B.C., Canada
16. Integrating Factors For Exact Equations
    Rajagopalan, Math. Dept., LeMoyne-Owen College, Memphis, TN
17. Integrating Factors  
    Josh and Frank Starmer,   Medical University of South Carolina, Charleston, SC  
18. The Integrating Factor   
    H. Scott Fogle, Chemical Engineering, University of Michigan, Ann Arbor, MI  
19. Integrating Factors For Exact Equations  
    Meenakshi Rajagopalan, Math. Dept., LeMoyne-Owen College, Memphis, TN
20. Integrating Factors  
    MathPages
21. Exact Differential Equations  PDF  
    Walter Schreiner, Math. Dept., Christian Brothers University, Memphis, TN
22. Exact differential equations  PDF  
    Joachim Vogt, Physics Dept, International University Bremen, Germany  
23. Exact Differential Equations  PDF  
    Xiangmin Xu, Math. Dept.,  Simon Fraser University, Burnaby, B. C., Canada   
24. Integrating Factors and Exact First Order ODE  PDF  
    Bent E. Petersen, Math. Dept, Oregon State University, Corvallis, OR   
25. Integrating factors  PDF  
    Alexandre Eremenko, Math. Dept., Purdue University, West Lafayette, IN  

(c) John H. Mathews 2004