Command Reference : Matrix Language Reference
Syntax: colplace(m, v, n)
Argument 1: matrix, m
Argument 2: vector, v
Argument 3: integer, n
Places the column vector v into the matrix m at column n. The number of rows of m and v must match, and the destination column must already exist within m. Example:
The third column of M1 will be set equal to the vector V1.
See also rowplace.