Recent content by Schimmel

2nd reply to Stephen Tashi. You write: "What is a "bilinear number"? So far as I am aware, there is no such thing as "a bilinear number." The phrase "bilinear numbers" refers to a set of numbers (in our case, a set of four numbers in a rectangular array) that change by a constant amount in the...

Reply to Stephen Tashi about Operational Equations from G. L. Silver. The four-point rectangle ACIG has A=1 at lower left corner, C=3 at lower right corner, G=7 at upper left corner, I=9 at upper right corner. These are bilinear numbers. Let (x) be the x-coordinate and (y) be the y-coordinate in...

Many years ago, I encountered a problem involving four numerical data in a square array or a rectangular array. The standard method for interpolating that design is the bilinear equation. For example, let the array be ACIG as below left. If A=1, C=3, G=7, I=9, then the bilinear equation yields...