analytical expression for the exact curved surface area and volume of hyperboloid of two sheets via mellin-barnes type contour integration

In this article, we aim at obtaining the analytical expression (not previously found and recorded in the literature) for the exact curved surface area of a hyperboloid of two sheets in terms of appell’s double hypergeometric function of second kind and triple hypergeometric function of srivastava. the derivation is based on mellinbarnes type contour integral representations of generalized hypergeometric function pfq(z), meijer’s g-function and series manipulation technique. further, we also obtain the formula for the volume of hyperboloid of two sheets. the closed forms for the exact curved surface area and volume of the hyperboloid of two sheets are also verified numerically by using mathematica program.