Linear equations {bilinear equation} can have products of two variables: c*x*y + b = 0, where x and y are variables to first power, and c and b are constants. Bilinear equations can be sums of indexed variables: a11 * x1 * y1 + a12 * x1 * y2 + ... + aNN * aN * yN, where aNN are constants, and xN and yN are indexed variables.
Mathematical Sciences>Algebra>Equation
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Date Modified: 2022.0224