Abstract
At first we explore the situation with the help of a graphical representation Let f(x 1, x 2) be a function of two variables — for example, a function whose level curves are of the form (5.1) (T marking a summit and not a depression of the “terrain”). If we wish to find the maximum of the function without imposing any constraint on the variables x 1, x 2, we reach the point T in the way indicated in Chapter 5.
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© 1966 Springer Science+Business Media Dordrecht
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Frisch, R. (1966). The Necessary Condition of the First Order in the Case of Two or More Variables with Constraints. In: Maxima and Minima. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-6408-7_6
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DOI: https://doi.org/10.1007/978-94-017-6408-7_6
Publisher Name: Springer, Dordrecht
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