MATE 4031 Homework

The address is: http://webwork.uprm.edu/webwork2/MATE_4031_Robert_Acar . Your login name is your student ID, and your password, which you are advised to change, is initially set to your student ID. The software has a button entitled "email your instructor", use it sparingly. My expertise in webwork is limited, and often I will not be able to help you over the ethernet. It is preferable to seek help in person during my office hours, or by appointment. I will also usually not answer questions on homework on the very day when it is due.

Set 1: systems, due Sep 2.
Set 2: matrices, due Sep 6.
Set 3: matrix factorisation, due Sep 11.
Set 4: vector space, span, linear independence, due Oct 2.
Set 5: dimension, coördinates, due Oct 23. Many of the problems ask to find a basis for some space or subspace. Finding the dimension is an exercise in counting degrees of freedom. Finding a basis can often be achieved by guessing, by analogy with the canonical bases for R^n or for spaces of matrices (see, e.g., example 2 of § 3.4). For some problems, like problem 7, the approach is to require the entries of the matrix to satisfy a certain linear system; a basis is then obtained by finding the solutions in parametric form - each parameter multiplies one basis element.
Set 6: transformations I, due Oct 30.
Set 7: transformations II, due Nov 6.
Set 8: scalar product, due Nov 13.
Set 9: orthogonality, due Nov 20.
Set 10: least squares, inner product, due Nov 29.
Set 11: eigenvalues, due Dec 4.


Last modified: Mon Nov 30 22:46:27 AST 2015