fix(dda): fix docstring

Author: Ranjita1708

graphics/digital_differential_analyzer_line.py

@@ -5,16 +5,31 @@ def digital_differential_analyzer_line(
     p1: tuple[int, int], p2: tuple[int, int]
 ) -> list[tuple[int, int]]:
     """
-    Draws a line between two points using the DDA algorithm.
+    Draws a line between two points using the Digital Differential Analyzer (DDA) algorithm.
+
+    The DDA algorithm works by computing the differences in x and y (dx, dy),
+    determining the dominant axis (the one with the larger absolute difference),
+    and incrementing along it in small uniform steps. The other coordinate is
+    updated by a proportional fractional amount at each iteration, producing a
+    sequence of intermediate points that approximate a straight line.
+
+    While simple and widely used for teaching computer graphics, the algorithm
+    relies on floating-point arithmetic and rounding at each step. This makes it
+    less efficient and less precise than the integer-only Bresenham line algorithm,
+    which is commonly preferred in performance-critical rasterization tasks.
 
     Args:
-    - p1: Coordinates of the starting point.
-    - p2: Coordinates of the ending point.
+        p1: Coordinates of the starting point.
+        p2: Coordinates of the ending point.
+
     Returns:
-    - List of coordinate points that form the line.
+        List of coordinate points that form the line.
 
     >>> digital_differential_analyzer_line((1, 1), (4, 4))
     [(2, 2), (3, 3), (4, 4)]
+
+    For more information, see:
+    https://en.wikipedia.org/wiki/Digital_differential_analyzer_(graphics_algorithm)
     """
     x1, y1 = p1
     x2, y2 = p2