The routine returns the horizontal coordinate of the given point P.

The command with(geometry,HorizontalCoord) allows the use of the abbreviated form of this command.

$\mathrm{with}\left(\mathrm{geometry}\right)\:$

$\mathrm{point}\left(A\,2\,8\right),\mathrm{point}\left(M\,u\,v\right)$

$A,M$

$\mathrm{HorizontalCoord}\left(A\right)$

$2$

$\mathrm{HorizontalCoord}\left(M\right)$

$u$