a supplemental textbook that provides the basic theory of differential equations, along with numerous solved problems
Persamaan diferensial adalah persamaan matematika yang menghubungkan suatu fungsi dengan turunan-turunan dari fungsi tersebut terhadap satu atau lebih variabel bebasnya.
The book is not intended as a research monograph on industrial problems nor as a standard text on differential equations, which, however, are its main mathematical theme