bilinear

/baɪˈlɪniər/
adjective
  1. Relating to or involving two lines or linear dimensions.
    • In geometry class, we studied bilinear forms and their properties.
    • The graph shows a bilinear relationship between the two variables.
    • The engineer used a bilinear interpolation to estimate the missing data point.
  2. In mathematics, describing a function that is linear in each of two variables separately.
    • The dot product is a classic example of a bilinear operation.
    • A bilinear function satisfies f(ax + by, z) = a f(x,z) + b f(y,z).
    • We learned how to compute the bilinear transform in our signal processing course.
What does "bilinear" mean? | whatsthatwordmean | whatsthatwordmean