{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# hw3b - CAAM 336 DIFFERENTIAL EQUATIONS Problem Set 3 Posted...

This preview shows pages 1–2. Sign up to view the full content.

CAAM 336 · DIFFERENTIAL EQUATIONS Problem Set 3 Posted Wednesday 8 September 2010. Corrected 14 September. Due Wednesday 15 September 2010, 5pm. 1. [20 points] Determine whether each of the following functions ( · , · ) determines an inner product on the vector space V . If not, show all the properties of the inner product that are violated. (a) V = C 1 [0 , 1], ( u, v ) = Z 1 0 u 0 ( x ) v 0 ( x ) dx (b) V = C [0 , 1]: ( u, v ) = Z 1 0 | u ( x ) || v ( x ) | dx (c) V = C [0 , 1]: ( u, v ) = Z 1 0 u ( x ) v ( x ) e - x dx (d) V = C 1 [0 , 1]: ( u, v ) = Z 1 0 u ( x ) v 0 ( x ) dx 2. [20 points] Suppose V is a vector space with an associated inner product. The angle ( u, v ) between u and v V is defined via the equation ( u, v ) = k u kk v k cos ( u, v ) . Let V = C [0 , 1] and ( u, v ) = R 1 0 u ( x ) v ( x ) dx . Compute cos ( x n , x m ) between u ( x ) = x n and v ( x ) = x m for nonnegative integers m and n . What happens to ( x n , x n +1 ) as n → ∞ ? 3. [25 points] Consider the polynomials φ 1 ( x ) = 1, φ 2 ( x ) = x , and φ 3 ( x ) = 3 x 2 - 1, which form a basis for the set of all quadratic polynomials. These polynomials are orthogonal in C [ - 1 , 1] with the usual inner product ( u, v ) = Z 1 - 1 u ( x ) v ( x ) dx.

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