English: A self-affine fractal set. Build iteratively from a ${\displaystyle \scriptstyle {p\times q}}$ array with ${\displaystyle \scriptstyle {p\leq q}}$. Its Hausdorff dimension equals ${\displaystyle \log {\left(\sum _{k=1}^{p}n_{k}^{a}\right)}/\log {p}}$ with ${\displaystyle a=\log {p}/log{q}}$ and ${\displaystyle n_{k}}$ is the number of elements in the ${\displaystyle k^{th}}$ column. Here it is 1.8272. The box-countig dimension yields a different formula, therefore, a different value. Unlike self-similar sets, the Hausdorff dimension of self-affine sets depends on the position of the iterated elements and there is no formula, so far, for the general case