Dec 14, 2005 #1 V v9260019 Member level 2 Joined Jun 5, 2005 Messages 47 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,680 an equation question Hello all If let t=f(x,y)=arctan(x/y) does t exist when y=0 or limt[y->0] ???? thanks a lot
an equation question Hello all If let t=f(x,y)=arctan(x/y) does t exist when y=0 or limt[y->0] ???? thanks a lot
Dec 14, 2005 #2 X xaris106 Newbie level 3 Joined Dec 14, 2005 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,356 Re: an equation question if i remember correct you must define x as a constant(not always) edit*wrong* then you approach y>0 from possitives and from negatives and if the limit is the same it exists.
Re: an equation question if i remember correct you must define x as a constant(not always) edit*wrong* then you approach y>0 from possitives and from negatives and if the limit is the same it exists.
Dec 14, 2005 #3 A alitavakol Member level 2 Joined Dec 1, 2005 Messages 47 Helped 2 Reputation 4 Reaction score 0 Trophy points 1,286 Location Iran Activity points 1,653 Re: an equation question if x≠0 then its limit will be π/2. and if x=0 then this will be 0. so lim f(x, y) for y->0 will have a discontinuty at x=0.
Re: an equation question if x≠0 then its limit will be π/2. and if x=0 then this will be 0. so lim f(x, y) for y->0 will have a discontinuty at x=0.