Format
A -= B
Set A equal to A - B. It is shorthand for A = A - B.
If A is an /icon, /matrix, pixloc, or vector, it will be changed rather than creating a new value and re-assigning it to A.
A -= B
Set A equal to A - B. It is shorthand for A = A - B.
If A is an /icon, /matrix, pixloc, or vector, it will be changed rather than creating a new value and re-assigning it to A.