UP
A treatise on Differential Equations by A. R. Forsyth. 6th edition. 1929. Macmillan Co. ltd. New York, reprinted 1956
Nasser M. Abbasi
November 6, 2022
Compiled on November 6, 2022 at 10:21pm
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Chapter VI. Note I. Integration of linear equations in series by the method of Frobenius. page 243