unlink() Instance Public methods Removes a file or directory, using File.unlink if self is a file, or Dir.unlink as necessary.

pathname.untaint â obj Instance Public methods Untaints this Pathname. See Object#untaint.

utime(p1, p2) Instance Public methods Update the access and modification times of the file. See File.utime.

world_readable?() Instance Public methods See FileTest#world_readable?.

world_writable?() Instance Public methods See FileTest#world_writable?.

writable?() Instance Public methods See FileTest#writable?.

writable_real?() Instance Public methods See FileTest#writable_real?.

zero?() Instance Public methods See FileTest#zero?.

new(frame) Class Public methods

recomputeAngle() Instance Public methods This procedure is the âbusinessâ part of the simulation that does simple numerical integration of the formula for a simple rotational pendulum.