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과학적

  • 아티클

Causes floating-point numbers to be displayed using scientific notation.

ios_base& scientific( 
   ios_base& _Str 
);

매개 변수

  • _Str
    A reference to an object of type ios_base, or to a type that inherits from ios_base.

반환 값

A reference to the object from which _Str is derived.

설명

By default, fixed notation is in effect for floating-point numbers.

The manipulator effectively calls _Str.setf(ios_base::scientific, ios_base::floatfield), and then returns _Str.

예제

// ios_scientific.cpp
// compile with: /EHsc
#include <iostream>

int main( ) 
{
   using namespace std;
   float i = 100.23F;

   cout << i << endl;
   cout << scientific << i << endl;
}

요구 사항

Header: <ios>

네임스페이스: std

참고 항목

참조

iostream 프로그래밍

iostreams 규칙