__DDA Line ( X1, Y1, XN, YN):__**: Here X1 and Y1 denote the starting x – coordinate and y – coordinate of the line**

*Description*and XN and YN denote the ending x – coordinate and y – coordinate.

1. Set M = (YN – Y1) / (XN – X1) [Calculate slope of line]

2. Repeat For I = X1 to XN

3. If (M <= 1) Then

4. Set DX = 1

5. Set DY = M * DX

6. Else

7. Set DY = 1

8. Set DX = DY / M

[End of If]

9. Set X1 = X1 + DX

10. Set Y1 = Y1 + DY

11. Call PutPixel(X1, Y1)

[End of For]

12. Exit

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