Integer (computer science) In computer science, an integer is a datum of integral data type, a data type that represents some finite subset of the mathematical integers. Integral data types may be of different sizes and may or may not be allowed to contain negative values. Integers are commonly represented in a computer as a group of binary digits (bits).
critical angle. Definition: The angle or greater, measured at the interface between a denser medium and a less dense in the same plane as the incident light, at which total internal reflection takes place - i.e. light is reflected back into the medium.
Click on an image for a full description of that type and a corresponding interactive applet. Straight angle Also Flat Angle. Definition: An angle whose measure is exactly 180Â° - a straight line. Try this Adjust the angle below by dragging an orange dot and see how the angle â  ABC behaves.