`make-fill-matrix:`procedureGiven a procedure

`VECTOR-SET!`, returns a procedure`FILL-MATRIX!`of the form`FILL-MATRIX!:: M * N * A * F * F0 * [IX * IY * EX * EY] -> A`Where procedure

`FILL-MATRIX!`fills matrix`A`of size`M x N`with the values returned by applying procedure`F`to each pair of indices in the matrix.Procedure

`F`is of the form`LAMBDA I J AX -> VAL * AX1`, where`I, J`are matrix indices, and`AX`is accumulator value (like in fold). The initial value of`AX`is given by`F0`. Procedure`F`is expected to return two values: the value to be placed in matrix`A`at position`[I,J]`, and the new accumulator value (or`#f`).Optional arguments

`IX IY EX EY`may specify a sub-matrix in matrix`A`to be filled. These arguments are checked to make sure they specify a valid sub-matrix.`VECTOR-SET!`is one of the homogeneous vector setting procedures from SRFI-4. Procedure`F`must ensure that it returns values that are within the range of the SRFI-4 type used.