#math - Tue 13 Mar 2007 between 00:02 and 00:23

NY Lost Funds



bsmntbombdood% asin[Sqrt[1/2]] //FullSimplify
mbotbsmntbombdood: asin[1/Sqrt[2]]
bsmntbombdoodhelpful.
% asin[Sqrt[.5]] //FullSimplify
mbotbsmntbombdood: asin[0.7071067811865476]
Manyfoldyes he is indeed
bsmntbombdood% Asin[Sqrt[.5]] //FullSimplify
mbotbsmntbombdood: Asin[0.7071067811865476]
bsmntbombdoodwhat's the function for arc sine?
CaleArcSin
bsmntbombdood% ArcSin[Sqrt[.5]] //FullSimplify
mbotbsmntbombdood: 0.7853981633974484
Cale% ArcSin[Sqrt[1/2]]
mbotCale: Pi/4
bsmntbombdoodmuch better
Caleand that's why you don't use decimals with mathematica unless you really know you want an approximation :)
ManyfoldCale: how good are with PDE's?
bsmntbombdoodWell, I thought it wasn't going to be able to give me an exact answer
CaleI don't know anything about PDE's.
Manyfold:(
well you surely know \partial
flaminguican_llll_: I'm not seeing how writing the equation in terms of tangent helps
bsmntbombdoodflaminguican: what's wrong with my solution?
_llll_what did you end up with?
flaminguican0
_llll_?
you should end up with an equation...
flaminguicanmeh, but I must be doing something wrong. Let me rework some stuff
bsmntbombdoodoh, right
% ArcTan[1]
mbotbsmntbombdood: Pi/4
bsmntbombdoodyep
sin(x) = tan(x)cos(x)
flaminguicanHm, okay, I see where you guys are going with the tangent thing now. But that means I must have messed up a sign somewhere farther back, because it gives me the correct answer with the incorrect sign :/
Alright, well thanks for all of the help again. I'll figure out the rest from here :)
kmhhmmm
what's the problem ?
Olathe% 666 Tan[1/212] //N
mbotOlathe: 3.141532733604734
bsmntbombdoodhe made me curious

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