java lang StrictMath Class - StrictMath Class in Java
java.lang.StrictMath Class
StrictMath Class in Java
The class StrictMath contains methods for performing basic numeric operations such as the elementary exponential, logarithm, square root, and trigonometric functions.
The Java math library is defined with respect to fdlibm version 5.3. Where fdlibm provides more than one definition for a function (such as acos), use the "IEEE 754 core function" version (residing in a file whose name begins with the letter e). The methods which require fdlibm semantics are sin, cos, tan, asin, acos, atan, exp, log, log10, cbrt, atan2, pow, sinh, cosh, tanh, hypot, expm1, and log1p.
In this Java StrictMath class tutorial you can learn how to use StrictMath class. You need not to create instance for StrictMath class. Because all the methods in StrictMath class are static methods. All the static methods are called with the class name.
What is java.lang.StrictMath in Java ?
The StrictMath is a class in Java . This StrictMath class is available in java.lang package . The StrictMath class contains methods for performing basic numeric operations such as the elementary exponential , logarithm , square root , and trigonometric functions .
What is the package name which contains StrictMath class ?
The Java package that contains the StrictMath class is StrictMath . This class is used to perform almost all basic numeric operations . It is defined as public final class StictMath .
Do I need to import StrictMath in Java ?
Since StrictMath class is in the java.lang package , the StrictMath class does not need to be imported . However , in programs extensively utilizing these functions , a static import can be used . There is no need to explicitly import java.lang.StrictMath as its imported implicitly . All its methods are static . This explanation also useful for how to import java.lang.StrictMath ? .
What are the StrictMath class methods in Java ?
StrictMath Class methods helps to perform the numeric operations like square, square root, cube, cube root, exponential and trigonometric operations . Following are the List of StrictMath Class Methods or functions .
| Modifier and Type | Method | Description |
|---|---|---|
| static double | java.lang.StrictMath.abs(double a) | Returns the absolute value of a double value. |
| static float | java.lang.StrictMath.abs(float a) | Returns the absolute value of a float value. |
| static int | java.lang.StrictMath.abs(int a) | Returns the absolute value of an int value. |
| static long | java.lang.StrictMath.abs(long a) | Returns the absolute value of a long value. |
| static double | java.lang.StrictMath.acos(double a) | Returns the arc cosine of a value; the returned angle is in the range 0.0 through pi. |
| static int | java.lang.StrictMath.addExact(int x, int y) | Returns the sum of its arguments, throwing an exception if the result overflows an int. |
| static long | java.lang.StrictMath.addExact(long x, long y) | Returns the sum of its arguments, throwing an exception if the result overflows a long. |
| static double | java.lang.StrictMath.asin(double a) | Returns the arc sine of a value; the returned angle is in the range -pi/2 through pi/2. |
| static double | java.lang.StrictMath.atan(double a) | Returns the arc tangent of a value; the returned angle is in the range -pi/2 through pi/2. |
| static double | java.lang.StrictMath.atan2(double y, double x) | Returns the angle theta from the conversion of rectangular coordinates (x, y) to polar coordinates (r, theta). |
| static double | java.lang.StrictMath.cbrt(double a) | Returns the cube root of a double value. |
| static double | java.lang.StrictMath.ceil(double a) | Returns the smallest (closest to negative infinity) double value that is greater than or equal to the argument and is equal to a mathematical integer. |
| static double | java.lang.StrictMath.copySign(double magnitude, double sign) | Returns the first floating-point argument with the sign of the second floating-point argument. |
| static float | java.lang.StrictMath.copySign(float magnitude, float sign) | Returns the first floating-point argument with the sign of the second floating-point argument. |
| static double | java.lang.StrictMath.cos(double a) | Returns the trigonometric cosine of an angle. |
| static double | java.lang.StrictMath.cosh(double x) | Returns the hyperbolic cosine of a double value. |
| static double | java.lang.StrictMath.exp(double a) | Returns Euler's number e raised to the power of a double value. |
| static double | java.lang.StrictMath.expm1(double x) | Returns ex -1. |
| static double | java.lang.StrictMath.floor(double a) | Returns the largest (closest to positive infinity) double value that is less than or equal to the argument and is equal to a mathematical integer. |
| static int | java.lang.StrictMath.floorDiv(int x, int y) | Returns the largest (closest to positive infinity) int value that is less than or equal to the algebraic quotient. |
| static long | java.lang.StrictMath.floorDiv(long x, long y) | Returns the largest (closest to positive infinity) long value that is less than or equal to the algebraic quotient. |
| static int | java.lang.StrictMath.floorMod(int x, int y) | Returns the floor modulus of the int arguments. |
| static long | java.lang.StrictMath.floorMod(long x, long y) | Returns the floor modulus of the long arguments. |
| static int | java.lang.StrictMath.getExponent(double d) | Returns the unbiased exponent used in the representation of a double. |
| static int | java.lang.StrictMath.getExponent(float f) | java.lang.StrictMath.Returns the unbiased exponent used in the representation of a float. |
| static double | java.lang.StrictMath.hypot(double x, double y) | Returns sqrt(x2 +y2) without intermediate overflow or underflow. |
| static double | java.lang.StrictMath.IEEEremainder(double f1, double f2) | Computes the remainder operation on two arguments as prescribed by the IEEE 754 standard. |
| static double | java.lang.StrictMath.log(double a) | Returns the natural logarithm (base e) of a double value. |
| static double | java.lang.StrictMath.log10(double a) | Returns the base 10 logarithm of a double value. |
| static double | java.lang.StrictMath.log1p(double x) | Returns the natural logarithm of the sum of the argument and 1. |
| static double | java.lang.StrictMath.max(double a, double b) | Returns the greater of two double values. |
| static float | java.lang.StrictMath.max(float a, float b) | Returns the greater of two float values. |
| static int | java.lang.StrictMath.max(int a, int b) | Returns the greater of two int values. |
| static long | java.lang.StrictMath.max(long a, long b) | Returns the greater of two long values. |
| static double | java.lang.StrictMath.min(double a, double b) | Returns the smaller of two double values. |
| static float | java.lang.StrictMath.min(float a, float b) | Returns the smaller of two float values. |
| static int | java.lang.StrictMath.min(int a, int b) | Returns the smaller of two int values. |
| static long | java.lang.StrictMath.min(long a, long b) | Returns the smaller of two long values. |
| static int | java.lang.StrictMath.multiplyExact(int x, int y) | Returns the product of the arguments, throwing an exception if the result overflows an int. |
| static long | java.lang.StrictMath.multiplyExact(long x, long y) | Returns the product of the arguments, throwing an exception if the result overflows a long. |
| static double | java.lang.StrictMath.nextAfter(double start, double direction) | Returns the floating-point number adjacent to the first argument in the direction of the second argument. |
| static float | java.lang.StrictMath.nextAfter(float start, double direction) | Returns the floating-point number adjacent to the first argument in the direction of the second argument. |
| static double | java.lang.StrictMath.nextDown(double d) | Returns the floating-point value adjacent to d in the direction of negative infinity. |
| static float | java.lang.StrictMath.nextDown(float f) | Returns the floating-point value adjacent to f in the direction of negative infinity. |
| static double | java.lang.StrictMath.nextUp(double d) | Returns the floating-point value adjacent to d in the direction of positive infinity. |
| static float | java.lang.StrictMath.nextUp(float f) | Returns the floating-point value adjacent to f in the direction of positive infinity. |
| static double | java.lang.StrictMath.pow(double a, double b) | Returns the value of the first argument raised to the power of the second argument. |
| static double | java.lang.StrictMath.random() | Returns a double value with a positive sign, greater than or equal to 0.0 and less than 1.0. |
| static double | java.lang.StrictMath.rint(double a) | Returns the double value that is closest in value to the argument and is equal to a mathematical integer. |
| static long | java.lang.StrictMath.round(double a) | Returns the closest long to the argument, with ties rounding to positive infinity. |
| static int | java.lang.StrictMath.round(float a) | Returns the closest int to the argument, with ties rounding to positive infinity. |
| static double | java.lang.StrictMath.scalb(double d, int scaleFactor) | Returns d ×2scaleFactor rounded as if performed by a single correctly rounded floating-point multiply to a member of the double value set. |
| static float | java.lang.StrictMath.scalb(float f, int scaleFactor) | Returns f ×2scaleFactor rounded as if performed by a single correctly rounded floating-point multiply to a member of the float value set. |
| static double | java.lang.StrictMath.signum(double d) | Returns the signum function of the argument; zero if the argument is zero, 1.0 if the argument is greater than zero, -1.0 if the argument is less than zero. |
| static float | java.lang.StrictMath.signum(float f) | Returns the signum function of the argument; zero if the argument is zero, 1.0f if the argument is greater than zero, -1.0f if the argument is less than zero. |
| static double | java.lang.StrictMath.sin(double a) | Returns the trigonometric sine of an angle. |
| static double | java.lang.StrictMath.sinh(double x) | Returns the hyperbolic sine of a double value. |
| static double | java.lang.StrictMath.sqrt(double a) | Returns the correctly rounded positive square root of a double value. |
| static int | java.lang.StrictMath.subtractExact(int x, int y) | Returns the difference of the arguments, throwing an exception if the result overflows an int. |
| static long | java.lang.StrictMath.subtractExact(long x, long y) | Returns the difference of the arguments, throwing an exception if the result overflows a long. |
| static double | java.lang.StrictMath.tan(double a) | Returns the trigonometric tangent of an angle. |
| static double | java.lang.StrictMath.tanh(double x) | Returns the hyperbolic tangent of a double value. |
| static double | java.lang.StrictMath.toDegrees(double angrad) | Converts an angle measured in radians to an approximately equivalent angle measured in degrees. |
| static int | java.lang.StrictMath.toIntExact(long value) | Returns the value of the long argument; throwing an exception if the value overflows an int. |
| static double | java.lang.StrictMath.toRadians(double angdeg) | Converts an angle measured in degrees to an approximately equivalent angle measured in radians. |
| static double | java.lang.StrictMath.ulp(double d) | Returns the size of an ulp of the argument. |
| static float | java.lang.StrictMath.ulp(float f) | Returns the size of an ulp of the argument. |
java.lang.StrictMath Class Example
/* Java StrictMath Class Example Save with file name StrictMathExample.java */public class StrictMathExample{ public static void main(String args[]) { //IF THE VALUE IS NEGITIVE IT RETURNS POSITIVE VALUE System.out.println("Absolute : " + StrictMath.abs(-100.50)); //IT INCREASE THE VALUE TO NEAREST INTEGER System.out.println("ceil : " + StrictMath.ceil(100.55)); //IT DECREASE THE VALUE TO NEAREST INTEGER System.out.println("floor : " + StrictMath.floor(100.55)); //IT RETURNS MAX NUMBER WITH IN THE GIVEN NUMBERS System.out.println("max : " + StrictMath.max(100,200)); //IT RETURNS MIN NUMBER WITH IN THE GIVEN NUMBERS System.out.println("min : " + StrictMath.min(100,200)); //IT RETURNS RANDOM NUMBER System.out.println("random : " + StrictMath.random()); //IT RETURNS WITHOUT FLOATING POINT System.out.println("round : " + StrictMath.round(100.75)); //IT RETURNS SQUARE ROOT System.out.println("sqrt : " + StrictMath.sqrt(2)); //IT RETURNS PI VALUE (22/7) System.out.println("PI : " + StrictMath.PI); //RETURNS NATURAL LOGARITHM System.out.println("log : " + StrictMath.log(10.55)); //RETURNS BASE 10 LOGARITHM System.out.println("log10 : " + StrictMath.log10(10.55)); //RETURNS NATURAL LOGARITHM OF SUM OF THE ARGUMENT AND 1 System.out.println("log1p : " + StrictMath.log1p(10.55)); }} |
Following Java StrictMath class example you can learn how to use trigonometric functions in java.
java.lang.StrictMath Class Example 2
/* Java StrictMath Class Example Save with file name StrictMathExample2.java */public class StrictMathExample2{ public static void main(String args[]) { //RETURNS ARC COSINE System.out.println("acos : " + StrictMath.acos(0.4)); //RETURNS ARC SINE System.out.println("asin : " + StrictMath.asin(0.4)); //RETURNS ARC TANGENT VALUE System.out.println("atan : " + StrictMath.atan(45)); //RETURNS COSINE OF AN ANGLE System.out.println("cos : " + StrictMath.cos(45)); //RETURNS HYPERBOLIC COSINE System.out.println("cosh : " + StrictMath.cosh(45)); //RETURNS SINE OF AN ANGLE System.out.println("sin : " + StrictMath.sin(45)); //RETURNS HYPERBOLIC SINE System.out.println("sinh : " + StrictMath.sinh(45)); //RETURNS TANGENT OF AN ANGLE System.out.println("tan : " + StrictMath.tan(45)); //RETURNS HYPERBOLIC TANGENT System.out.println("tanh : " + StrictMath.tanh(45)); //RETURNS DEGREES System.out.println("toDegrees : " + StrictMath.toDegrees(45)); //RETURNS RADIANS System.out.println("toRadians : " + StrictMath.toRadians(45)); }} |