USE: math.matrices
IN: scratchpad 6 identity-matrix .
{
    { 1 0 0 0 0 0 }
    { 0 1 0 0 0 0 }
    { 0 0 1 0 0 0 }
    { 0 0 0 1 0 0 }
    { 0 0 0 0 1 0 }
    { 0 0 0 0 0 1 }
}