Brainee Posted October 29, 2023 Share Posted October 29, 2023 Is f(x) used only with functions? Link to comment Share on other sites More sharing options...
joigus Posted October 29, 2023 Share Posted October 29, 2023 I think so. What other use do you have in mind? In mathematics you have so-called functionals, which are functions of functions. They're referred to with square brackets, e.g.: G[f] 1 Link to comment Share on other sites More sharing options...
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