The anatomy of the search table

The following figure shows the anatomy of a two-dimensional search table. The anchor point vectors and an array called the table data make up the lookup table.:

A reference point is one element of a vector of reference points. The reference point represents a specific input value, which is mapped to the corresponding output value in the table data. Each reference point is an index of input values for a specific dimension of the search table. The array of tabular data serves as a sample representation of the function, evaluated by the values of the reference points. The lookup table blocks use anchor points to link the input values of the table to the output values it returns.

The anchor point vector consists of input values that index a specific dimension of the search table. The lookup table uses anchor point vectors to relate the input values to the output values it returns.

The table data is an array that serves as a selective representation of a function evaluated by the values of the reference points of the search table. The lookup table uses reference points to index the table data and eventually returns the output value.