Visual meaning of 'bilinear'? - learn with images, example in daily life

Visual illustration of bilinear: A bilinear function.

noun

A bilinear function.

"Calculating the area of a parallelogram using two vectors is an example of a bilinear. "

Visual illustration of bilinear: (of a function in two variables) Linear (preserving linear combinations) in each variable.

adjective

(of a function in two variables) Linear (preserving linear combinations) in each variable.

"The function f(x,y)=xy is bilinear, because f(ax+bu,y)=af(x,y)+bf(u,y) and f(x,ay+bv)=af(x,y)+bf(x,v) for all values."

Visual illustration of bilinear: Of or pertaining to a Möbius transformation (type of conformal map representable as the ratio of two linear functions).

adjective

Of or pertaining to a Möbius transformation (type of conformal map representable as the ratio of two linear functions).

"bilinear isotropic hardening"