In radioactivity, the portion of all decays that take a given pathway. For example, californium-252 decays by alpha decay ~97% of the time, and by spontaneous fission ~3% of the time; so the branching ratio is about 0.97 in favor of alpha decay, and about 0.03 in favor spontaneous fission.

(finance) Alternative form of PE ratio

(cinematography) An aspect ratio in which a motion picture is formatted to fit a specific type of screen (historically 1.33:1), as opposed to original aspect ratio.

(cinematography) The aspect ratio of the rectangular shape that the director intended his or her motion picture to be viewed in, as opposed to modified aspect ratio.

(India, finance) The proportion of loan-assets created by banks from the deposits received.

(sciences) A figure of merit comparing the strength of a signal carrying information to the noise interfering with it.

(aviation) The instantaneous ratio of lift to drag of an aerodynamic article such as an a wing, entire aircraft or bird.

(finance) The ratio of share price to earnings per share used as an indication of the relative value of the share.

(ecology) The ratio of purchased emergy to the local free environmental emergy.

Alternative form of PE ratio