Kumar, Mukesh A. P. Singh Ashok Kumar creator text New Delhi MEDTECH 2018 monographic xii, 388 p. : ill. ; 24 cm. Includes index. Mathematics Differential Calculus Differential equations Partial differentiation Singular points Value theorem Mean values Differentiability Asymptotes Curvature Tangent Variables RICAS 515.33 KUM 9789387025547 (pbk)