Interpolating the population of China

Vectors and matrices in Julia

Backslash for solving linear systems

Solving triangular systems

Gaussian elimination

Row operations

Using LU factorization

Timing and flop counts

Timing matrix-vector multiplication

Timing of LU factorization

Failure of plain LU factorization

Row pivoting

Vector norms

Matrix norms

Condition number bounds on error

Banded matrices

Timing for banded matrices

Symmetric LU

Cholesky factorization