Equations with undetermined coefficients
In the previous section we learnt that solution to the complete linear differential equation is composed of the sum of the complementary function and the particular integral. Techniques for obtaining the complementary function were developed in sections 2.1.4-2.1.6 with many working examples. What remains is only to provide techniques for finding a particular integral in order to obtain a complete solution. In this section we shall discuss the technique called the method of undetermined coefficients.
Although the method of undetermined coefficients is not applicable in all cases, it may be used if the right- hand side ,contains only terms which have a finite number of linearly independent derivatives such as , , , or products of these. 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | Поиск по сайту:
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