Programming & Data Structures: Float, double and long double data types in C programming. Topics discussed: 1. Float data type. 2. Double data type. 3. Long double data type. 4. Difference between float and double. 5. Difference between double and long double. 6. Fixed point representation. 7. Floating point representation. 8. Difference between fixed and floating points. 9. Float data type example. 10. Double data type example. 11. Long double data type example.