# Difference Between DDA and Bresenham’s Line Algorithm

DDA Algorithm | Bresenham's Line Algorithm |
---|---|

1. DDA Algorithm uses floating point, real arithmetic. | 1. Bresenham's Algorithm uses fixed points, integer arithmetic. |

2. DDA algorithm uses multiplication and division operations. | 2. Bresenham's Algorithm uses addition and subtraction operations. |

3. DDA algorithm is slower than Bresenham's Algorithm because it uses real arithmetic floating point operations. | 3. Bresenham's Algorithm is faster than DDA algorithm because it uses integer arithmetic. |

4. DDA algorithm can draw circles and curves with less accuracy. | 4. Bresenham's Algorithm can draw circles and curves with much more accuracy. |

5. DDA algorithm is less efficient than Bresenham's Algorithm. | 5. Bresenham's Algorithm is more efficient than DDA Algorithm. |

6. DDA algorithm round-off the co-ordinates to integer that is nearest to the line. | 6. Bresenham's Algorithm doesn't round-off the co-ordinates. |

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