x = A sin â¡ ( Ï [ t â K ] ) + b , {\displaystyle x=A\sin(\omega [t-K])+b\ ,}. 1  A is the amplitude (or peak amplitude), 2  x is the oscillating variable, 3  Ï is angular frequency, 4  t is time, 5  K and b are arbitrary constants representing time and displacement offsets respectively.
Modeling agency. A modeling agency is a company that represents fashion models, to work for the fashion industry. These agencies earn their income via commission, usually from the deal they make with the model and or the head agency. The top agencies work with big-budget advertising agencies and fashion designers.
When a model auditions for a modelling booking it's called a go-see or casting. B&W: Black and white, as in a black & white photograph (the only other alternative is colour). The photos used for actor's headshots are almost always in black & white.BACKDROP: A background used in a photographer's studio.GENCY: A company that represents models, actors and talent of any kind. A modelling agency is responsible for representing and promoting itâs models and booking jobs for them. Modelling agencies usually handle contracts, payments and the whole business side of the model's work.