Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: "Chris M. Thomasson" Newsgroups: sci.math Subject: Re: More complex numbers than reals? Date: Sun, 21 Jul 2024 16:01:51 -0700 Organization: A noiseless patient Spider Lines: 14 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Injection-Date: Mon, 22 Jul 2024 01:01:53 +0200 (CEST) Injection-Info: dont-email.me; posting-host="e5e0901eabcdb6107cf2334f05523c53"; logging-data="313765"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18kL25BBGLNGacf2dWpcBYLVT2nUHPjbP4=" User-Agent: Mozilla Thunderbird Cancel-Lock: sha1:KQ3jJbzG86OGL3pybpONtQMyyVA= In-Reply-To: Content-Language: en-US Bytes: 1691 On 7/21/2024 3:57 PM, Chris M. Thomasson wrote: [...] >> Also, from the unit circle, all circles and ellipses can be created. >> The ellipse aspect is that of a circle rotated in 3d is an ellipse >> when viewed on the projected plane. Check this out in VR: >> >> https://skfb.ly/6RozT > > Think of a circle in 3d. Looking at it dead on as a circle. Then, change > the camera view. It becomes an ellipse. A screenshot: https://i.ibb.co/BcX7yQW/image.png