ArcTan[x, 0] With Numeric Values
- To: mathgroup at smc.vnet.net
- Subject: [mg30544] ArcTan[x, 0] With Numeric Values
- From: "David Park" <djmp at earthlink.net>
- Date: Tue, 28 Aug 2001 04:54:49 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Dear MathGroup,
Why does this two argument form of ArcTan not automatically simplify with
numeric input? It does simplify with number input.
{ArcTan[5, 0], ArcTan[Sqrt[5], 0], ArcTan[Pi, 0]}
Simplify[%]
FullSimplify[%]
{0, ArcTan[Sqrt[5], 0], ArcTan[Pi, 0]}
{0, 0, ArcTan[Pi, 0]}
{0, 0, 0}
One would normally expect the same simplification to automatically occur in
all three of these cases.
David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/