C++ Math - sqrt (square root, 제곱근, 루트). stl, math.h, 씨쁠쁠, example code, 예제코드

C++ Math - sqrt (squareRoot, 제곱근)C++ Math - sqrt (squareRoot, 제곱근). stl, math.h, 씨쁠쁠, example code, 예제코드C++ Math - sqrt (square root, 제곱근, 루트). stl, math.h, 씨쁠쁠, example code, 예제코드

 

 

math.h 헤더 추가해주고,

 

sqrt    -> 제곱근 (square root)

 

 

반환되는 자료형만 차이가 있고 sqrt, sqrtf, sqrtl 다 같은 기능

 

There are some difference between sqrt, sqrtf, and sqrtl. All is the same square root function, but return type.

 

 

msdn below

 https://docs.microsoft.com/ko-kr/cpp/c-runtime-library/reference/sqrt-sqrtf-sqrtl?view=vs-2019

 

 

#include <iostream>
#include <math.h>

using namespace std;

int main(int argc, char *argv[]) {

	double returnVal;

	returnVal = sqrt(1938);
	cout << returnVal << endl;

	returnVal = sqrt(9);
	cout << returnVal << endl;

	returnVal = sqrt(99);
	cout << returnVal << endl;
}

 

Result below

 

44.0227

3

9.94987

 

 

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