sinh()是C++ STL中的內置函數,它返回以弧度給出的角度的雙曲正弦值。
用法:
sinh(data_type x)
參數:該函數接受一個強製性參數x,該參數指定弧度中的雙曲角。該參數可以是double,float或long double數據類型。
返回值:該函數返回參數的雙曲正弦值。如果結果的大小太大而無法用返回類型的值表示,則該函數返回inf。
示例1:
// C++ program to demonstrate the
// sinh() function
#include <bits/stdc++.h>
using namespace std;
int main()
{
double x = 4.1;
double result = sinh(x);
cout << "sinh(4.1) = " << result << endl;
// x in Degrees
double xDegrees = 90;
x = xDegrees * 3.14159 / 180;
result = sinh(x);
cout << "sinh(90 degrees) = " << result << endl;
return 0;
}
輸出:
sinh(4.1) = 30.1619 sinh(90 degrees) = 2.3013
示例2:
// C++ program to demonstrate the
// sinh() function
#include <bits/stdc++.h>
using namespace std;
int main()
{
int x = -4;
double result = sinh(x);
cout << "sinh(-4) = " << result << endl;
// x in Degrees
double xDegrees = 90;
// convert to radians
x = xDegrees * 3.14159 / 180;
result = sinh(x);
cout << "sinh(90 degrees) = " << result << endl;
return 0;
}
輸出:
sinh(-4) = -27.2899 sinh(90 degrees) = 1.1752
錯誤和異常:當字符串或字符作為參數傳遞時,該函數不返回任何匹配函數來調用錯誤。
以下程序說明了sinh()方法的錯誤和異常:
示例3:
// C++ program to demonstrate the
// sinh() function when a string is passed
#include <bits/stdc++.h>
using namespace std;
int main()
{
string x = "gfg";
double result;
result = sinh(x);
cout << "sinh(x) = " << result << endl;
return 0;
}
輸出:
prog.cpp:14:20: error: no matching function for call to 'sinh(std::__cxx11::string&)' result = sinh(x);
示例4:
// C++ program to demonstrate the sinh()
// function When argument is too large
#include <bits/stdc++.h>
using namespace std;
int main()
{
double x = 3000.0;
double result = sinh(x);
cout << "sinh(x) = " << result << endl;
return 0;
}
輸出:
sinh(3000.0) = inf
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注:本文由純淨天空篩選整理自pawan_asipu大神的英文原創作品 sinh() function in C++ STL。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。