Pack Rows (LogiX node)
The Pack Rows node outputs a matrix formed via the joining of two or more input rows. The rows are joined from top to bottom in order of the input they are assigned to. The row inserted into the first input will become the topmost row, and the row inserted into the last input will become the bottommost row.
When spawned from the node browser, this node accepts the float2 datatype by default. However, this node can be overloaded to accept different numeric value types if an appropriate wire is connected to an input.
The following image shows creating the identity matrix and subsequently taking the determinant of it.