Surface of revolution never negative, the area is given by If the curve is described by the function , , then the integral becomes for revolution around the -axis, and for revolution around the "y"-axis (using ). These come from the above formula. For example, the spherical surface with unit radius is generated by the curve , , when ranges over . Its area is therefore For the case of the spherical curve with radius , rotated about the -axis A minimal surface of revolution is the surface of revolution of the curve between two given points which minimizes surface area. A basic
Volume (video game) over the country of England and runs the nation as a corporatocracy. It is hinted in-game that "Volume" is set in the same timeline as that of "Thomas Was Alone", also developed by Mike Bithell, but set after the events of that game. "Volume"s gameplay has been designed by Bithell similar to the stealth elements of the "Metal Gear Solid" series. The game is presented in a top-down third-person view of the Volume simulation, showing a floor layout, Robert's avatar, and several guards and other antagonists that patrol the area. Several different variety of guards exist, each which have different