+130536 The "arctangent," "arctan" and "tan-1 " all mean the same thing = "inverse tangent"....and as Dragonlance has said, these are used when we are trying to find an angle, given some value (ratio) for that angle.
+1090 I just know very basic trigonometry, but if normal tangent is opposite over adjacent side, I would guess inverse tangent would be adjacent over opposite side.
Thanks for catching that error, Dragonlance. I do have it backwards (but I think that's justified, since I just learned that basic trigonometry yesterday.)
+1316 Hi Mathematician
I think you have that backwards. Tangent is opposite over adjacent and inverse tangent would be adjacent over opposite.
But he probably means how to do it on the calculator.
Do that by clicking on the 2nd button and it will say atan which means arc tan and that is for when you need the angle of the ratio of the opposite over adjacent.
That is different than inverse tangent though.
+130536 The "arctangent," "arctan" and "tan-1 " all mean the same thing = "inverse tangent"....and as Dragonlance has said, these are used when we are trying to find an angle, given some value (ratio) for that angle.
