Figure 1.

Time required to compute the inverse of a matrix of size *n* × *n*, using inversion “from scratch” (▬ • ▬ •) and updating (from *n* – *n*_{2} to *n*) in steps of *n*_{2} = 200 (▬▬▬▬) and *n*_{2}= 500(▬ ▬ ▬). A = Standalone version, B1 = version using BLAS and LAPACK versions, B2 = as B1 but using additional workspace. See online version for figure in color.