2. C. Similarity Dimension

Box-Counting Dimension Patterns

For self-similar fractals such as the Koch curve and the Sierpinski gasket, the box-counting dimension is easiest to compute if the box sizes are taken to be powers of the scaling factor, 1/3 for the Koch curve and 1/2 for the Sierpinski gasket.
For example, we observed the gasket can be covered with 3n boxes of side length 1/2n, so the box-counting dimension computation is
db = limn → ∞Log(3n)/Log((2n))
= limn → ∞(nLog(3))/(nLog(2))
= Log(3)/Log(2).
Note n cancels out of the computation. This is not an accident, but a consequence of the self-similar scaling.
This observation can be exploited to simplify the computation of the dimension, in the case of self-similar fractals.

Return to Similarity Dimension.