"Chuck S." wrote in message
...
I'm looking to incorporate the calculation of high and low tides into my Delphi
software. For this I need algorithms telling me how to calculate the time of
high and low tides. Do you know where I can get such algorithms? I understand
it will probably involve complex calculations to find the position of the sun
and moon in relation to the earth and I am prepared for that.

That will be but the beginning of the ordeal. Much of the
physics of the tides is in the interaction of the water with
the geometry of the coastlines. For example, large bays
cause resonance effects. The Bay of Fundy comes to mind.