Web Reference: Sep 16, 2023 · When used in an expression out > setprecision(n), sets the precision parameter of the stream out or in to exactly n. The following behavior-changing defect reports were applied retroactively to previously published C++ standards. This page was last modified on 16 September 2023, at 00:06. There is no such thing. The precision of a double is fixed; it is an inherent part of the datatype. What we're doing here is altering the apparent precision when we print the number for human consumption. using namespace std; std:: cout fixed showpoint setprecision(2) endl. double num1 = 3.12345678; cout
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