Announcements

• HW2 posted. Due Fri May 5 @ 11:59PM.

• Quiz 1 this Wed. 10 minutes, closed book.

Last time

• Computer storage and arithmetics (cont’d).

• Flops.

• Numerical linear algebra: introduction.

Today

• BLAS (cont’d).

• Triangular systems.

• Gaussian elimination and LU decomposition.