the brackets saying stuff like (*0.1) or (*0.01) is just the multiplier. Eg. if you input 50 into "Scaling Factor (*0.01) the program will interpret as 50*0.01 = 0.5, as in, the lines get 0.5 times "bigger" each time, basically 2x smaller. Bigger number = less size change
you can make the sierpenski triangle pictured with the following settings Iterations (*0.2): 45 (9 iterations) InitLength (*2): 90 (180 length) Scaling Factor (*0.01): 50 (50% smaller each time) Branches/Iteration (*0.05): 60 (3 branches) Angle Increment (*1.8): 66 Fine Angle Adjust (*0.01): 100 (120º) Width Multiplier (*0.01): 0 (minimum length) Centered: TRUE