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Fernando,
Try a Decl of 20+180=200
or 20-180= - 160
To know the coordinates of the place where the needed
Horizontal is
you can 'walk' 10 000km (1/4 of Earth perimeter) towards the
direction
your Vertical is facing to and then ask
someone where you are (use gestual language).
As an alternate method you can solve the sph triangle North
Pole, Your Vertical
and the Horizontal.
jorge
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- : Help! a novice is knocked down Jorge Ramalho
- : Help! a novice is knocked down Fernando Cabral
