Proceedings of the American Mathematical Society, Vol. 36, No. 2 (Dec., 1972), pp. 485-490 (6 pages) This paper is concerned with differentiation of interval functions appearing in interval analysis.

Da-Sol Kuen, Miso Park, Heeju Ryu, Garam Choi, Young-Hye Moon, Jae-Ouk Kim, Keon Wook Kang, Sang Geon Kim, Yeonseok Chung Proceedings of the National Academy of Sciences of the United States of ...

Revise differentiation of algebraic and trigonometric expressions, which can be used for calculating rates of change, stationary points and their nature, or the gradient and equation of a tangent to a ...