Difference between revisions of "P. 625, Exercise 12.2, number 6"
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| − | The equation should be <math>\ddot x + x + x^3 = 0, x(0) = 1, \dot x(0) = 1</math>. | + | The equation should be |
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| + | <math>\ddot x + x + x^3 = 0, x(0) = 1, \dot x(0) = 1</math>. | ||
[[Engineering Differential Equations: Theory and Applications, Springer 2010#Errata|Return to errata.]] | [[Engineering Differential Equations: Theory and Applications, Springer 2010#Errata|Return to errata.]] | ||
