CS205A midterm2 fall07

CS205A midterm2 fall07 - CS 205A Fall 2007 Midterm(8 points...

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CS 205A Fall 2007 Midterm (8 points) Multiple Choice [circle the best answer] 1. When solving Ax = b , which of the following are true? 2. When solving the characteristic ODE y 0 = λy , (a) The problem is ill-posed if λ > 0. (b) When discretized using forward euler, the method is unstable when - 2 < hλ < 0. (c) When discretized using backward euler, the method is unstable when h = λ . (d) The Trapezoidal rule is 3 rd order accurate.
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