benjamin evan ainsworth

Sun, 03 May 2026 08:52:40 +0000

But using %lu solved the issue. Actually, rather than focusing on the problem and the line of codes, I want to know about the difference between %ul and %lu. Maybe I could figure out what's. What is the difference between %zu and %lu in string formatting in C? %lu is used for unsigned long values and %zu is used for size_t values, but in practice, size_t is just an unsigned long. There is a functional difference. Suppose you just want to have an LU decomposition; then you use scipy.linalg.lu. However suppose you will solve a lot of linear systems with different right. Indeed you are right: chaining scipy's scipy.linalg.lu_factor() and scipy.linalg.lu_solve() is perfectly equivalent to numpy's numpy.linalg.solve(). Nevertheless, having access to the LU.