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Unformatted text preview: τ in fourthorder RK is approx. Ch 4 . If you change h to qh , the error becomes q 4 τ . You can estimate τ by comparing your result to the control result, the diﬀerence of the two is approximately τ/h . Then solve  q 4 τ  ≤ ± ). (more ambitious) If you have the stamina, you can instead use the fourthorder part of RungeKutteFehlberg, using the ﬁfthorder part as control. 1...
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This note was uploaded on 01/21/2012 for the course MATH 128A taught by Professor Rieffel during the Fall '08 term at Berkeley.
 Fall '08
 Rieffel
 Math, Numerical Analysis

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