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Trigonometric methods in Java
The java.lang.Math class contains methods for performing basic numeric operations such as the trigonometry, logarithm, etc.
The following are some of the methods.
| Sr.No | Methods & Description |
|---|---|
| 1 |
static double abs(double a) This method returns the absolute value of a double value. |
| 2 |
static float abs(float a) This method returns the absolute value of a float value. |
| 3 |
static int abs(int a) This method returns the absolute value of an int value. |
| 4 |
static long abs(long a) This method returns the absolute value of a long value. |
| 5 |
static double acos(double a) This method returns the arc cosine of a value; the returned angle is in the range 0.0 through pi. |
| 6 |
static double asin(double a) This method returns the arc sine of a value; the returned angle is in the range -pi/2 through pi/2. |
Let us see an example of acos() method.
Example
public class Demo {
public static void main(String args[]) {
double val = Math.PI / 2;
val = Math.toRadians(val);
System.out.println("Math.acos(" + val + ") = " + Math.acos(val));
}
}
Output
Math.acos(0.027415567780803774) = 1.5433773235341761
Let us see an example of asin() method.
Example
public class Demo {
public static void main(String args[]) {
double val = Math.PI / 2;
val = Math.toRadians(val);
System.out.println("Math.asin(" + val + ") = " + Math.asin(val));
}
}
Output
Math.asin(0.027415567780803774) = 0.02741900326072046
Let us see an example of log() method.
Example
public class Demo {
public static void main(String args[]) {
double val1 = 39564.9;
double val2 = 1;
System.out.println("Math.log(" + val1 + ") = " + Math.log(val1));
System.out.println("Math.log(" + val2 + ") = " + Math.log(val2));
}
}
Output
Math.log(39564.9) = 10.585697640553684 Math.log(1.0) = 0.0
Updated on: 2020-06-26T09:04:16+05:30
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