relative command; relative instruction
Computing term for a command or instruction that specifies a position or movement relative to the current reference point, rather than an absolute coordinate.
This CNC program specifies movements using relative commands.
相対座標指令を使うと、現在位置からの移動量だけを考えればよい。
When using relative instructions, you only need to consider the amount of movement from the current position.
絶対座標指令 specifies a position based on a fixed origin, while 相対座標指令 specifies movement relative to the current position.
Compound of 相対 (relative), 座標 (coordinates), and 指令 (command/instruction). A straightforward technical term with no special historical derivation.