📅  最后修改于: 2020-11-15 03:06:21             🧑  作者: Mango
java.lang.StrictMath类包含用于执行基本数字运算的方法,例如基本指数,对数,平方根和三角函数。
以下是java.lang.StrictMath类的声明-
public final class StrictMath
extends Object
以下是java.lang.StrictMath类的字段-
静态double E-这是一个比其他任何值都更接近自然对数底数e的double值。
静态double PI-这是一个比pi更近的double值,即圆周长与其直径之比pi。
Sr.No. | Method & 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. |
7 | static double atan(double a)
This method returns the arc tangent of a value; the returned angle is in the range -pi/2 through pi/2. |
8 | static double atan2(double y, double x)
This method returns the angle theta from the conversion of rectangular coordinates (x, y) to polar coordinates (r, theta). |
9 | static double cbrt(double a)
This method returns the cube root of a double value. |
10 | static double ceil(double a)
This method 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. |
11 | static double copySign(double magnitude, double sign)
This method returns the first floating-point argument with the sign of the second floating-point argument. |
12 | static float copySign(float magnitude, float sign)
This method returns the first floating-point argument with the sign of the second floating-point argument. |
13 | static double cos(double a)
This method returns the trigonometric cosine of an angle. |
14 | static double cosh(double x)
This method returns the hyperbolic cosine of a double value. |
15 | static double exp(double a)
This method returns Euler’s number e raised to the power of a double value. |
16 | static double expm1(double x)
This method returns ex -1. |
17 | static double floor(double a)
This method 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. |
18 | static int getExponent(double d)
This method returns the unbiased exponent used in the representation of a double. |
19 | static int getExponent(float f)
This method returns the unbiased exponent used in the representation of a float. |
20 | static double hypot(double x, double y)
This method returns sqrt(x2 +y2) without intermediate overflow or underflow. |
21 | static double IEEEremainder(double f1, double f2)
This method returns the natural logarithm (base e) of a double value. |
22 | static double log(double a)
This method returns the natural logarithm (base e) of a double value. |
23 | static double log10(double a)
This method returns the base 10 logarithm of a double value. |
24 | static double log1p(double x)
This method returns the natural logarithm of the sum of the argument and 1. |
25 | static double max(double a, double b)
This method returns the greater of two double values. |
26 | static float max(float a, float b)
This method returns the greater of two float values. |
27 | static int max(int a, int b)
This method returns the greater of two int values. |
28 | static long max(long a, long b)
This method returns the greater of two long values. |
29 | static double min(double a, double b)
This method returns the smaller of two double values. |
30 | static float min(float a, float b)
This method returns the smaller of two float values. |
31 | static int min(int a, int b)
This method returns the smaller of two int values. |
32 | static long min(long a, long b)
This method returns the smaller of two long values. |
33 | static double nextAfter(double start, double direction)
This method returns the floating-point number adjacent to the first argument in the direction of the second argument. |
34 | static float nextAfter(float start, double direction)
This method returns the floating-point number adjacent to the first argument in the direction of the second argument. |
35 | static double nextUp(double d)
This method returns the floating-point value adjacent to d in the direction of positive infinity. |
36 | static float nextUp(float f)
This method returns the floating-point value adjacent to f in the direction of positive infinity. |
37 | static double pow(double a, double b)
This method returns the value of the first argument raised to the power of the second argument. |
38 | static double random()
This method returns a double value with a positive sign, greater than or equal to 0.0 and less than 1.0. |
39 | static double rint(double a)
This method returns the double value that is closest in value to the argument and is equal to a mathematical integer. |
40 | static long round(double a)
This method returns the closest long to the argument. |
41 | static int round(float a)
This method returns the closest int to the argument. |
42 | static double scalb(double d, int scaleFactor)
This method return d × 2scaleFactor rounded as if performed by a single correctly rounded floating-point multiply to a member of the double value set. |
43 | static float scalb(float f, int scaleFactor)
This method Return f × 2scaleFactor rounded as if performed by a single correctly rounded floating-point multiply to a member of the float value set. |
44 | static double signum(double d) scaleFactor)
This method 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. |
45 | static float signum(float f)
This method 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. |
46 | static double sin(double a)
This method returns the trigonometric sine of an angle. |
47 | static double sinh(double x)
This method returns the hyperbolic sine of a double value. |
48 | static double sqrt(double a)
This method returns the correctly rounded positive square root of a double value. |
49 | static double tan(double a)
This method returns the trigonometric tangent of an ang |
50 | static double tanh(double x)
This method returns the hyperbolic tangent of a double value. |
51 | static double toDegrees(double angrad)
This method converts an angle measured in radians to an approximately equivalent angle measured in degrees. |
52 | static double toRadians(double angdeg)
This method converts an angle measured in degrees to an approximately equivalent angle measured in radians. |
53 | static double ulp(double d)
This method returns the size of an ulp of the argument. |
54 | static float ulp(float f)
This method returns the size of an ulp of the argument. |
此类从以下类继承方法-