Path: news.eternal-september.org!eternal-september.org!.POSTED!not-for-mail From: Richard Heathfield Newsgroups: comp.theory Subject: Re: Integration "by parts" [was Re: Functions computed by Turing Machines ...] Date: Mon, 5 May 2025 16:49:08 +0100 Organization: Fix this later Lines: 27 Message-ID: References: <991dde3a60e1485815b789520c7149e7842d18f2@i2pn2.org> <-GOdnZvgEPn-84j1nZ2dnZfqn_SdnZ2d@brightview.co.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 05 May 2025 17:49:09 +0200 (CEST) Injection-Info: dont-email.me; posting-host="35396e3e70446f4ec1a7d7dab39281f2"; logging-data="844021"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18EYvmfoBHBBIL4Z/dSMYfBqjdnvXttceQ0VRJbUtWSgg==" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:Pm7mmab3UJJpAq46/M3pMxDRPwQ= In-Reply-To: Content-Language: en-GB On 05/05/2025 13:47, Andy Walker wrote: > On 04/05/2025 22:18, Richard Heathfield wrote: >> [...] I hit a hard wall (integration by parts) and never really >> recovered. > >     Is that still a "hard wall" for you? It's been many years since I last visited that part of the garden. > I know how annoying it is to be told that something you find > hard is "really" very easy, but in this case it really is, and > the problem is usually bad teaching. I have no doubt that to real mathematicians it's a walk in the park, but not to me. I managed to pick out a path in which I never needed more than algebra, trigonometry, and a certain aptitude for bullying computers. The only integration I've done since sixth form has been integration testing. -- Richard Heathfield Email: rjh at cpax dot org dot uk "Usenet is a strange place" - dmr 29 July 1999 Sig line 4 vacant - apply within