Deleting Integrate[] transformation rule

*To*: mathgroup at smc.vnet.net*Subject*: [mg87534] Deleting Integrate[] transformation rule*From*: UHAP023 at alpha1.rhbnc.ac.uk*Date*: Sat, 12 Apr 2008 07:00:25 -0400 (EDT)*Organization*: Low Temperature Physics, RHUL

Dear All, I feel sure this should be easy and have searched for the answer in the online docs & NG but without success. I wish to remove (as opposed to modify) a rule such as the following; When integrating Mathematica knows the result of D[EllipticF[phi,m, phi]] = 1/Sqrt[1-m*Sin[phi]^2]] and will produce expressions containing EllipticF[] in its result when it encounters such a pattern. I want to prevent this -- that is Unprotect Integrate[] and make it forget this rule so that EllipticF[] will not appear in the result. Any ideas? Thanks Tom. Ps. the Email address in the header is just a spam trap. -- Tom Crane, Dept. Physics, Royal Holloway, University of London, Egham Hill, Egham, Surrey, TW20 0EX, England. Email: T.Crane at rhul dot ac dot uk Fax: +44 (0) 1784 472794