MATH 355 Lecture 1: Chapter 1 Math 410
16 Mar 2016
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Quizzes on fridays in class over one exact same homework problem (maybe with different numbers) from last week or monday of that week. Grading: quizzes: 20% total of final grade, 0: nothing, 1: wrong answer/ ideas, 2: correct answer, midterms, 2, 20% each, final exam, 40% Office hours: monday: 1:00 to 2:50 pm, friday: 11:00 to 11:50 am, math. arizona. edu/~ibrahim/teach/math410. php ibrahim@math. arizona. edu. Okay to ask during class and office hours. 5*z=5, so z=1: then substitute into second equation. Pivots: use the pivots to kill the non zero numbers. In the end we want ones on the diagonal: in essence: start with augmented matrix and transform the matrix of coefficients into an identity matrix (square matrix that has ones in a diagonal and zeros everywhere else). Then the right hand side is transformed into the solution: will not work for every possible linear system. General case will be the reduced roechelon form.
