# 14. Mathematical Operation class (trigonometric functions, integer function, exponential function, maximum, minimum, absolute value)

Source: Internet
Author: User
Tags square root

` PackageCom.lei.duixiang; Public classexponentfunction {/*** Mathematical Operations class * 1. Trigonometric functions * 2. Exponential function * 3. Rounding function * 4. Take maximum, minimum, absolute value function *@paramargs*/    //1. Trigonometric Methods    Static  Public voidSanjiao () {//take 90 degrees of sineSystem.out.println ("sinusoidal value of 90 degrees:" +math.sin (MATH.PI/2)); System.out.println ("Cosine of 0 Degrees:" +math.cos (0));//take the cosine of 0 degrees.//take the tangent of 60 degreesSystem.out.println ("Tangent of 60 Degrees:" +math.tan (MATH.PI/3)); //take 2 square root with 2 quotient of the inverse chordSystem.out.println ("2 square root with 2 quotient of the inverse chord:" +math.asin (MATH.SQRT (2)/2)); //take the square root of 2 and the inverse cosine of 2 quotientSystem.out.println ("The square root of 2 with 2 quotient of the inverse cosine:" +math.acos (MATH.SQRT (2)/2)); System.out.println ("1 of the inverse Tangent value:" +math.atan (1));//take 1 of the arc tangent//take the radian value of 120 degreesSystem.out.println ("Radian value of 120 degrees:" +math.toradians (120.0)); //take the angle of ∏/2System.out.println ("∏/2 angle Value:" +math.todegrees (MATH.PI/2)); System.out.println ("----------------------"); }        //2. Exponential function Method    Static  Public voidZhishu () {System.out.println ("E squared value:" +math.exp (2));//take E's two-time square//take the logarithm of the base 2 of eSystem.out.println ("Take a pair of values with the base 2 of E:" +math.log (2)); //take the logarithm of base 2 at 10System.out.println ("Take a pair of values at base 2 of 10:" +math.log10 (2)); System.out.println ("Square root value of 4:" +math.sqrt (4));//take the square root of 4System.out.println ("8 cubic Root value:" +MATH.CBRT (8));//take the cubic root of 8System.out.println ("2 of 2 square Values:" +math.pow (2,2));//take 2 of the 2 square rootSystem.out.println ("-------------------"); }        //3. Rounding Function Method    Static  Public voidQuzheng () {//returns an integer greater than the first argumentSystem.out.println ("Use Ceil () method rounding:" +math.ceil (5.2)); //returns an integer that is less than the first argumentSystem.out.println ("Use floor () method rounding:" +math.floor (2.5)); //returns the integer closest to the parameterSystem.out.println ("Use Rint () method rounding:" +math.rint (2.7)); //returns the integer closest to the parameterSystem.out.println ("Use Rint () method rounding:" +math.rint (2.5)); //returns the nearest integer after adding a parameter of 0.5SYSTEM.OUT.PRINTLN ("Use round () method rounding:" + Math.Round (3.4f)); //returns the nearest integer after adding a parameter of 0.5 and casts the result to a long integerSYSTEM.OUT.PRINTLN ("Use round () method rounding:" +math.round (2.5)); System.out.println ("--------------------------"); }    //4. Take maximum, minimum, absolute value function    Static  Public voidqumaxmin () {System.out.println ("4 and 8 larger:" +math.max (4, 8)); //take the minimum value of 2 parametersSystem.out.println ("4.4 and 4 Lesser:" +math.min (4.4, 4)); System.out.println ("-Absolute value of 7:" +math.abs (-7)); System.out.println ("--------------------"); }         Public Static voidMain (string[] args) {Sanjiao ();//1. Trigonometric MethodsZhishu ();//2. Exponential function MethodQuzheng ();//3. Rounding Function MethodQumaxmin ();//4. Take maximum, minimum, absolute value function    }}`

14, Mathematical operations Class (trigonometric functions, rounding function, exponential function, maximum, minimum, absolute value)

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