UP
A treatise on Differential Equations by A. R. Forsyth. 6th edition. 1929. Macmillan Co. ltd. New York, reprinted 1956
Nasser M. Abbasi
January 4, 2023
Compiled on January 4, 2023 at 2:44pm
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Chapter VI. Note I. Integration of linear equations in series by the method of Frobenius. page 243