Narayan, Shanti Dr. P.K. Mittal creator text New Delhi Shyamlal Lal Charitable Trust 2016 monographic xi, 572 p. : ill. 24 cm. for B. A. and B. Sc. students Calculus Partial differential operators Mean value theorem Differential equations Curve tracing FEAS 515.33 NAR 9788121904711 (pbk) 8121904714 (pbk)