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9 System.out.println("Math.cbrt(-27.0) : " + Math.cbrt(-27.0));
10 System.out.println("Math.pow(3,2) : " + Math.pow(3,2));
11 System.out.println("Math.ceil(3.4) : " + Math.ceil(3.4));
12 System.out.println("Math.floor(-5.8) : " + Math.floor(-5.8));
13 System.out.println("Math.exp(2) : " + Math.exp(2));
14 System.out.println("Math.abs(-4.4) : " + Math.abs(-4.4));
15 System.out.println("Math.log(1) : " + Math.log(1));
16 System.out.println("Math.round(3.4) : " + Math.round(3.4));
17 System.out.println("Math.rint(2.5) : " + Math.rint(2.5));
18 System.out.println("Math.random() : " + Math.random());
19 }
20 }
You will get the following output:
7.2.14 Trigonometric Functions
There are three different Trigonometric functions that are used in Java. They are:
Function Name Syntax Description
Math.sin Math.sin(value) Returns the sine value of the angle
Math.cos Math.cos(value) Returns the cosine value of the angle
Math.tan Math.tan(value) Returns the tangent value of the angle
It returns value in double. The arguments that are passed are in Radians which is generally derived from degrees.
To convert degree to radian, we use the following formula:
Radian = (p * degree given)/180.0
If double degree = 30, radian;
radian = (22.0/7.0*30)/180.0 = 0.5238
Mathematical Library Methods 145

