{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# chapt1 - ME 4905 Advanced Numerical Methods Solutions of...

This preview shows pages 1–8. Sign up to view the full content.

ME 4905 Advanced Numerical Methods Solutions of Linear Systems: Iterative Methods Lecturer: T.Y. Ng (PhD) Email: [email protected]

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2 Equations – 2 Unknowns 3 possibilities: 1.No solution 2.one solution 3.Infinite many solutions
Linear Systems = n n nn n n n n b b b x x x a a a a a a a a a M M L M O M M L L 2 1 2 1 2 1 2 22 21 1 12 11 Many mathematical models in engineering and sciences are involved in solving linear system. Typical examples are linear circuits, system of spring-mass model, etc. n nn n n n n b b b a a a a a a a a a M L M O M M L L 2 1 2 1 2 22 21 1 12 11 | | | |

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Upper-Triangular System = n n nn n b b b x x x a a a a a M M M M L L M O O M M O O M M O O L L 2 1 2 1 22 1 12 11 0 0 0 0 0 ii n i j j ij n i i n n n n n n n n nn n n n a x a a x a x a a x a a x + = + - - - + - - + - = - = = 1 1 , 1 , 1 , 1 1 , 1 1 1 , M How do we solve it? + + + 1 , 1 , 2 1 , 1 22 1 12 11 | | | | | 0 0 0 0 0 n n n n nn n a a a a a a a a M M L L M O O M M O O M M O O L L
3 × 3 System

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Gaussian Elimination Elementary Row Operation = n n nn n n n n b b b x x x a a a a a a a a a M M L M O M M L L 2 1 2 1 2 1 2 22 21 1 12 11 = n n nn b b b x x x a a a a a M M M M L L M O O M M O O M M O O L L 2 1 2 1 22 11 12 11 0 0 0 0 0
Geometric Aspect = = = = n n n n nn n n n n b b b b b b x x x a a a a a a a a a x a x a x a M M M L M O M M L L 2 2 1 1 2 1 2 1 2 1 2 22 21 1 12 11 n i b x a i j ij , , 2 , 1 K = = Or in a more compact form The vector x is the solution . Alternatively, we can think about the projection of all a i onto x .

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern