Java中的 StrictMath cosh() 方法
Java.lang.StrictMath.cosh()是Java中的一个内置方法,它返回给定双参数的双曲余弦值。
- 当参数为 NaN 时,该方法返回 NaN。
- 当参数为无穷大时,该方法返回正无穷大。
- 当给定参数为 0.0 时,该方法返回 1.0。
句法 :
public static double cosh(double num)
参数:该方法接受一个要返回双曲余弦值的double类型的参数num 。
返回值:该方法返回num的双曲余弦值。
例子 :
Input: num = 60.0
Output: 5.710036949078421E25
Input: num = 0.0
Output: 1.0
下面的程序说明了Java.lang.StrictMath.cosh() 方法:
方案一:
java
// Java program to illustrate the
// java.lang.StrictMath.cosh()
import java.lang.*;
public class Geeks {
public static void main(String[] args)
{
double num1 = 78.8, num2 = 0.0, num3 = 1.0;
// It returns the hyperbolic cosine of
// specified angle in radian
double coshvalue = StrictMath.cosh(num1);
System.out.println("The cosh of "+
num1+" = " + coshvalue);
coshvalue = StrictMath.cosh(num2);
System.out.println("The cosh of "+
num2+" = " + coshvalue);
coshvalue = StrictMath.cosh(num3);
System.out.println("The cosh of "+
num3+" = " + coshvalue);
}
}
java
// Java program to illustrate the
// java.lang.StrictMath.cosh()
import java.lang.*;
public class Geeks {
public static void main(String[] args)
{
double num1 = (30 * (Math.PI)) / 180;
double num2 = 11.0, num3 = 45.0;
// It returns the hyperbolic cosine of
// angle in radian
double coshvalue = StrictMath.cosh(num1);
System.out.println("The cosh of "+
num1+" = " + coshvalue);
coshvalue = StrictMath.cosh(num2);
System.out.println("The cosh of "+
num2+" = " + coshvalue);
coshvalue = StrictMath.cosh(num3);
System.out.println("The cosh of "+
num3+" = " + coshvalue);
}
}
输出:
The cosh of 78.8 = 8.344016962852523E33
The cosh of 0.0 = 1.0
The cosh of 1.0 = 1.543080634815244
方案二:
Java
// Java program to illustrate the
// java.lang.StrictMath.cosh()
import java.lang.*;
public class Geeks {
public static void main(String[] args)
{
double num1 = (30 * (Math.PI)) / 180;
double num2 = 11.0, num3 = 45.0;
// It returns the hyperbolic cosine of
// angle in radian
double coshvalue = StrictMath.cosh(num1);
System.out.println("The cosh of "+
num1+" = " + coshvalue);
coshvalue = StrictMath.cosh(num2);
System.out.println("The cosh of "+
num2+" = " + coshvalue);
coshvalue = StrictMath.cosh(num3);
System.out.println("The cosh of "+
num3+" = " + coshvalue);
}
}
输出:
The cosh of 0.5235987755982988 = 1.1402383210764286
The cosh of 11.0 = 29937.070865949758
The cosh of 45.0 = 1.7467135528742547E19