作业帮abs函数作用#include #include using namespace std;int main(){double ac[6]={0.9135,0.9073,0.8747,0.907,0.9229,0.9233};double pp[6]={11.6576,12.7487,14.2012,13.2767,11.5804,11.459};double total=0.0;double variance=0.0;for(int i=0;i
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![abs函数作用#include #include using namespace std;int main(){double ac[6]={0.9135,0.9073,0.8747,0.907,0.9229,0.9233};double pp[6]={11.6576,12.7487,14.2012,13.2767,11.5804,11.459};double total=0.0;double variance=0.0;for(int i=0;i](/uploads/image/z/10758186-18-6.jpg?t=abs%E5%87%BD%E6%95%B0%E4%BD%9C%E7%94%A8%23include+%23include+using+namespace+std%3Bint+main%28%29%7Bdouble+ac%5B6%5D%3D%7B0.9135%2C0.9073%2C0.8747%2C0.907%2C0.9229%2C0.9233%7D%3Bdouble+pp%5B6%5D%3D%7B11.6576%2C12.7487%2C14.2012%2C13.2767%2C11.5804%2C11.459%7D%3Bdouble+total%3D0.0%3Bdouble+variance%3D0.0%3Bfor%28int+i%3D0%3Bi)
abs函数作用#include #include using namespace std;int main(){double ac[6]={0.9135,0.9073,0.8747,0.907,0.9229,0.9233};double pp[6]={11.6576,12.7487,14.2012,13.2767,11.5804,11.459};double total=0.0;double variance=0.0;for(int i=0;i
abs函数作用
#include
#include
using namespace std;
int main()
{
double ac[6]={0.9135,0.9073,0.8747,0.907,0.9229,0.9233};
double pp[6]={11.6576,12.7487,14.2012,13.2767,11.5804,11.459};
double total=0.0;
double variance=0.0;
for(int i=0;i
abs函数作用#include #include using namespace std;int main(){double ac[6]={0.9135,0.9073,0.8747,0.907,0.9229,0.9233};double pp[6]={11.6576,12.7487,14.2012,13.2767,11.5804,11.459};double total=0.0;double variance=0.0;for(int i=0;i
abs函数返回传递给它的参数的绝对值.比如
int a=abs(-10);
那么a就会等于10.
C++允许重载,所以你可以调用abs的重载版本,如
double b＝abc(-123.45);
那么b会是123.45.
abs函数的原型定义在cmath头文件中,在C中,原型是
int abs(
int n
);
而在C++中,它的原型有以下几个：
int abs(
int n
);
long abs(
long n
); // C++ only
double abs(
double n
); // C++ only
long double abs(
long double n
); // C++ only
float abs(
float n
); // C++ only
__int64 _abs64(
__int64 n
);