java.lang
Class StrictMath

java.lang.Object
  java.lang.StrictMath

public final class StrictMath
extends Object

Class StrictMath provides various numeric operations using the standards set by the known "Freely Distributable Math Library" (fdlibm). The standard is set by the January 4th, 1995 version of the library.

Field Summary

static double	E Standard math constant
static double	PI Standard math constant

Method Summary

static double	abs(double d) Answers the absolute value of the argument.
static float	abs(float f) Answers the absolute value of the argument.
static int	abs(int i) Answers the absolute value of the argument.
static long	abs(long l) Answers the absolute value of the argument.
static double	acos(double d) Answers the closest double approximation of the arc cosine of the argument
static double	asin(double d) Answers the closest double approximation of the arc sine of the argument
static double	atan(double d) Answers the closest double approximation of the arc tangent of the argument
static double	atan2(double d1, double d2) Answers the closest double approximation of the arc tangent of the result of dividing the first argument by the second argument.
static double	ceil(double d) Answers the double conversion of the most negative (i.e.
static double	cos(double d) Answers the closest double approximation of the cosine of the argument
static double	exp(double d) Answers the closest double approximation of the raising "e" to the power of the argument
static double	floor(double d) Answers the double conversion of the most positive (i.e.
static double	IEEEremainder(double d1, double d2) Answers the remainder of dividing the first argument by the second using the IEEE 754 rules.
static double	log(double d) Answers the closest double approximation of the natural logarithm of the argument
static double	max(double d1, double d2) Answers the most positive (i.e. closest to positive infinity) of the two arguments.
static float	max(float f1, float f2) Answers the most positive (i.e. closest to positive infinity) of the two arguments.
static int	max(int i1, int i2) Answers the most positive (i.e. closest to positive infinity) of the two arguments.
static long	max(long l1, long l2) Answers the most positive (i.e. closest to positive infinity) of the two arguments.
static double	min(double d1, double d2) Answers the most negative (i.e. closest to negative infinity) of the two arguments.
static float	min(float f1, float f2) Answers the most negative (i.e. closest to negative infinity) of the two arguments.
static int	min(int i1, int i2) Answers the most negative (i.e. closest to negative infinity) of the two arguments.
static long	min(long l1, long l2) Answers the most negative (i.e. closest to negative infinity) of the two arguments.
static double	pow(double d1, double d2) Answers the closest double approximation of the result of raising the first argument to the power of the second.
static double	random() Returns a pseudo-random number between 0.0 and 1.0.
static double	rint(double d) Answers the double conversion of the result of rounding the argument to an integer.
static long	round(double d) Answers the result of rounding the argument to an integer.
static int	round(float f) Answers the result of rounding the argument to an integer.
static double	sin(double d) Answers the closest double approximation of the sine of the argument
static double	sqrt(double d) Answers the closest double approximation of the square root of the argument
static double	tan(double d) Answers the closest double approximation of the tangent of the argument
static double	toDegrees(double angrad) Returns the measure in degrees of the supplied radian angle
static double	toRadians(double angdeg) Returns the measure in radians of the supplied degree angle

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

E

public static final double E

Standard math constant

See Also:

Constant Field Values

PI

public static final double PI

Standard math constant

See Also:

Constant Field Values

Method Detail

abs

public static double abs(double d)

Answers the absolute value of the argument.

Parameters:

d - the value to be converted

Returns:

the argument if it is positive, otherwise the negation of the argument.

abs

public static float abs(float f)

Answers the absolute value of the argument.

Parameters:

f - the value to be converted

Returns:

the argument if it is positive, otherwise the negation of the argument.

abs

public static int abs(int i)

Answers the absolute value of the argument.

Parameters:

i - the value to be converted

Returns:

the argument if it is positive, otherwise the negation of the argument.

abs

public static long abs(long l)

Answers the absolute value of the argument.

Parameters:

l - the value to be converted

Returns:

the argument if it is positive, otherwise the negation of the argument.

acos

public static double acos(double d)

Answers the closest double approximation of the arc cosine of the argument

Parameters:

d - the value to compute acos of

Returns:

the arc cosine of the argument.

asin

public static double asin(double d)

Answers the closest double approximation of the arc sine of the argument

Parameters:

d - the value to compute asin of

Returns:

the arc sine of the argument.

atan

public static double atan(double d)

Answers the closest double approximation of the arc tangent of the argument

Parameters:

d - the value to compute atan of

Returns:

the arc tangent of the argument.

atan2

public static double atan2(double d1,
                           double d2)

Answers the closest double approximation of the arc tangent of the result of dividing the first argument by the second argument.

Parameters:

d1 - the numerator of the value to compute atan of

d2 - the denominator of the value to compute atan of

Returns:

the arc tangent of d1/d2.

ceil

public static double ceil(double d)

Answers the double conversion of the most negative (i.e. closest to negative infinity) integer value which is greater than the argument.

Parameters:

d - the value to be converted

Returns:

the ceiling of the argument.

cos

public static double cos(double d)

Answers the closest double approximation of the cosine of the argument

Parameters:

d - the value to compute cos of

Returns:

the cosine of the argument.

exp

public static double exp(double d)

Answers the closest double approximation of the raising "e" to the power of the argument

Parameters:

d - the value to compute the exponential of

Returns:

the exponential of the argument.

floor

public static double floor(double d)

Answers the double conversion of the most positive (i.e. closest to positive infinity) integer value which is less than the argument.

Parameters:

d - the value to be converted

Returns:

the ceiling of the argument.

IEEEremainder

public static double IEEEremainder(double d1,
                                   double d2)

Answers the remainder of dividing the first argument by the second using the IEEE 754 rules.

Parameters:

d1 - the numerator of the operation

d2 - the denominator of the operation

Returns:

the result of d1/d2.

log

public static double log(double d)

Answers the closest double approximation of the natural logarithm of the argument

Parameters:

d - the value to compute the log of

Returns:

the natural logarithm of the argument.

max

public static double max(double d1,
                         double d2)

Answers the most positive (i.e. closest to positive infinity) of the two arguments.

Parameters:

d1 - the first argument to check

d2 - the second argument

Returns:

the larger of d1 and d2.

max

public static float max(float f1,
                        float f2)

Answers the most positive (i.e. closest to positive infinity) of the two arguments.

Parameters:

f1 - the first argument to check

f2 - the second argument

Returns:

the larger of f1 and f2.

max

public static int max(int i1,
                      int i2)

Answers the most positive (i.e. closest to positive infinity) of the two arguments.

Parameters:

i1 - the first argument to check

i2 - the second argument

Returns:

the larger of i1 and i2.

max

public static long max(long l1,
                       long l2)

Answers the most positive (i.e. closest to positive infinity) of the two arguments.

Parameters:

l1 - the first argument to check

l2 - the second argument

Returns:

the larger of l1 and l2.

min

public static double min(double d1,
                         double d2)

Answers the most negative (i.e. closest to negative infinity) of the two arguments.

Parameters:

d1 - the first argument to check

d2 - the second argument

Returns:

the smaller of d1 and d2.

min

public static float min(float f1,
                        float f2)

Answers the most negative (i.e. closest to negative infinity) of the two arguments.

Parameters:

f1 - the first argument to check

f2 - the second argument

Returns:

the smaller of f1 and f2.

min

public static int min(int i1,
                      int i2)

Answers the most negative (i.e. closest to negative infinity) of the two arguments.

Parameters:

i1 - the first argument to check

i2 - the second argument

Returns:

the smaller of i1 and i2.

min

public static long min(long l1,
                       long l2)

Answers the most negative (i.e. closest to negative infinity) of the two arguments.

Parameters:

l1 - the first argument to check

l2 - the second argument

Returns:

the smaller of l1 and l2.

pow

public static double pow(double d1,
                         double d2)

Answers the closest double approximation of the result of raising the first argument to the power of the second.

Parameters:

d1 - the base of the operation.

d2 - the exponent of the operation.

Returns:

d1 to the power of d2

random

public static double random()

Returns a pseudo-random number between 0.0 and 1.0.

Returns:

a pseudo-random number

rint

public static double rint(double d)

Answers the double conversion of the result of rounding the argument to an integer.

Parameters:

d - the value to be converted

Returns:

the closest integer to the argument (as a double).

round

public static long round(double d)

Answers the result of rounding the argument to an integer.

Parameters:

d - the value to be converted

Returns:

the closest integer to the argument.

round

public static int round(float f)

Answers the result of rounding the argument to an integer.

Parameters:

f - the value to be converted

Returns:

the closest integer to the argument.

sin

public static double sin(double d)

Answers the closest double approximation of the sine of the argument

Parameters:

d - the value to compute sin of

Returns:

the sine of the argument.

sqrt

public static double sqrt(double d)

Answers the closest double approximation of the square root of the argument

Parameters:

d - the value to compute sqrt of

Returns:

the square root of the argument.

tan

public static double tan(double d)

Answers the closest double approximation of the tangent of the argument

Parameters:

d - the value to compute tan of

Returns:

the tangent of the argument.

toDegrees

public static double toDegrees(double angrad)

Returns the measure in degrees of the supplied radian angle

Parameters:

angrad - an angle in radians

Returns:

the degree measure of the angle.

toRadians

public static double toRadians(double angdeg)

Returns the measure in radians of the supplied degree angle

Parameters:

angdeg - an angle in degrees

Returns:

the radian measure of the angle.