Question Number 91595 by mahdi last updated on 01/May/20
$$\mathrm{what}'\mathrm{s}\:\mathrm{meaning}\:\mathrm{of}\:\left(\overset{.} {\mathrm{x}}\right)\:\mathrm{or}\:\left(\overset{..} {\mathrm{x}}\right)? \\ $$$$\mathrm{are}\:\left(\overset{.} {\mathrm{x}}\right)=\mathrm{x}'? \\ $$
Commented by mr W last updated on 01/May/20
$${yes},\:{i}\:{think}\:{so}. \\ $$
Commented by mahdi last updated on 01/May/20
$$\mathrm{thank} \\ $$
Answered by MJS last updated on 01/May/20
$$\mathrm{yes} \\ $$
Commented by mahdi last updated on 01/May/20
$$\mathrm{thank} \\ $$