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Apr 16, 2022 at 6:13 history edited Jukka Kohonen CC BY-SA 4.0
typos and other small fixes
Apr 6, 2019 at 16:17 history edited Alexander Chervov CC BY-SA 4.0
added 321 characters in body; edited title
Apr 6, 2019 at 16:08 comment added Alexander Chervov @DavidKetcheson Thank you for your comment. I will revise question. Indeed, your remarks are fully correct: I want to know node locations when number of nodes is predescribed and moreover I am interested in specific situation when values of approximation at nodes are the same as values of "f" or saying like you wrote: "approximation" be pointwise less than or equal to the function" - as it is shown on figures.
Apr 6, 2019 at 12:34 comment added David Ketcheson I guess you are asking how to choose the node locations and values, when the number of nodes is prescribed. And I guess you also require that the "approximation" be pointwise less than or equal to the function. If so, you should make these things clear in the question. At present, it's very hard to tell what you're asking.
Apr 5, 2019 at 19:47 history edited Alexander Chervov CC BY-SA 4.0
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Apr 5, 2019 at 19:15 history asked Alexander Chervov CC BY-SA 4.0