Re: Simplifying Jacobian elliptic functions
- To: mathgroup at smc.vnet.net
- Subject: [mg56322] Re: Simplifying Jacobian elliptic functions
- From: John Billingham <John.Billingham at Nottingham.ac.uk>
- Date: Fri, 22 Apr 2005 06:22:48 -0400 (EDT)
- References: <d2j8j8$k2$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
> Unprotect[Plus] > JacobiDN[p_, k_]^2 + k_ JacobiSN[p_, k_]^2 := 1 > Protect[Plus] > Thanks for the tip. Why does your suggestion work, but Unprotect[Minus]; 1 - JacobiSN[p_, m_]^2 := JacobiCN[p, m]^2; Protect[Minus]; doesn't?? John