(seed2);std::normal_distribution<>normal_dist(mean,2);std::map<int,int>hist;for(intn=0;n<10000;++n)++hist[std::round(normal_dist(e2))];std::cout<<"围绕 "<<mean<<" 的正态分布:\n"<<std::fixed<<std::setprecision(1);for(auto[x, y]:hist)std::cout<<std::setw(2)<<x<<...
(1.18e-4932l)// long double<<std::setprecision(39)<<OUT(3.4028234e38f)// float<<OUT(3.4028234e38)// double<<OUT(3.4028234e38l)// long double<<'\n';static_assert(3.4028234e38f==std::numeric_limits<float>::max());static_assert(3.4028234e38f==// 结尾为 43.4028235e38f);// 结尾为 ...
(1'000'000) << '\n' << "γ as egamma_v<float> = " << std::setprecision(std::numeric_limits<float>::digits10 + 1) << egamma_v<float> << '\n' << "γ as egamma_v<double> = " << std::setprecision(std::numeric_limits<double>::digits10 + 1) << egamma_v<double> ...
#include <cmath>#include <complex>#include <iomanip>#include <iostream>#include <ranges>intmain(){usingnamespacestd::complex_literals;std::cout<<std::fixed<<std::setprecision(1);std::complex<double>z1=1i*1i;// imaginary unit squaredstd::cout<<"i * i = "<<z1<<'\n';std::comple...
(http://en.cppreference.com/w/cpp/io/manip/setprecision): <urlopen error [Errno 101] Network is unreachable> URL failed (http://en.cppreference.com/w/cpp/io/manip/setw): <urlopen error [Errno 101] Network is unreachable> URL failed (http://en.cppreference.com/w/cpp/iterator/begin)...
#include <cfloat>#include <iomanip>#include <iostream>intmain(){intw=16;std::cout<<std::left;// std::cout << std::setprecision(53);# define COUT(x) std::cout << std::setw(w) << #x << " = " << x << '\n'COUT(FLT_RADIX);COUT(DECIMAL_DIG);COUT(FLT_DECIMAL_DIG);COUT...
#include <cmath>#include <iomanip>#include <iostream>doublephi(doublex1,doublex2){return(std::erf(x2/std::sqrt(2))-std::erf(x1/std::sqrt(2)))/2;}intmain(){std::cout<<"正态变化概率:\n"<<std::fixed<<std::setprecision(2);for(intn=-4;n<4;++n)std::cout<<"["<<std::setw...
Run this code #include <iostream>#include <iomanip>// Converts integer to different types and prints ittemplate<classType>voidfoo(intx){std::cout<<Type(x)<<"\n";}intmain(){std::cout<<std::fixed<<std::setprecision(3);// setup formattingfoo<int>(67);// print 67 as an intfoo<do...
("en_US.UTF-8"));std::cout<<std::fixed<<std::setprecision(1);autoeval=[](autofun){constautot1=std::chrono::high_resolution_clock::now();constauto[name, result]=fun();constautot2=std::chrono::high_resolution_clock::now();conststd::chrono::duration<double,std::milli>ms=t2-t1;...
{std::cout<<std::setprecision(16)<<"exp(1) = e¹ = "<<std::exp(1)<<'\n'<<"numbers::e = "<<std::numbers::e<<'\n'<<"approx_e = "<<approx_e()<<'\n'<<"$100 在 1 年连续复利 3% 后,本金 + 利息 = "<<std::setprecision(6)<<100*std::exp(0.03)<<'\n';// ...