anon: what do I press to get tangent inverse 1 in the scientific calculator?
It will probably help if you know that inverse tan (tan
-1 ) is the same thing as arctan (atan)
Just press 2nd atan 1 =
There is a toggle button at the bottom to set for degrees or radians.
It's not relevant for your problem but I don't know if this calculator will convert decimal degrees into degrees, minutes and seconds. I can't see a button for it.
+118654 
