L→=r→×F→\overrightarrow{\mathrm{L}}=\overrightarrow{\mathrm{r}} \times \overrightarrow{\mathrm{F}}L=r×F
L→=P→×r→\overrightarrow{\mathrm{L}}=\overrightarrow{\mathrm{P}} \times \overrightarrow{\mathrm{r}}L=P×r
L→=r→×P→\overrightarrow{\mathrm{L}}=\overrightarrow{\mathrm{r}} \times \overrightarrow{\mathrm{P}}L=r×P