1 Cubism was invented around 1907 in Paris by Pablo Picasso and Georges Braque. 2  Cubism was the first abstract style of modern art. 3  A Cubist painting ignores the traditions of perspective drawing and shows you many views of a subject at one time. 4  The Cubists introduced collage into painting.
Two linear systems using the same set of variables are equivalent if each of the equations in the second system can be derived algebraically from the equations in the first system, and vice versa.
What is the 'Equivalent Annual Cost - EAC'. The equivalent annual cost (EAC) is the annual cost of owning, operating and maintaining an asset over its entire life. EAC is often used by firms for capital budgeting decisions. The equivalent annual cost methodology allows a company to compare the cost effectiveness of various assets that have unequal lifespans.