# Math Class Methods : Math Functions « Development « Java Tutorial

 Function Description IEEEremainder(double, double) Returns the remainder of f1 divided by f2 as defined by IEEE 754 abs(int a) Returns the absolute integer value of a abs(long a) Returns the absolute long value of a abs(float a) Returns the absolute float value of a abs(double a) Returns the absolute double value of a acos(double a) Returns the arc cosine of a, in the range of 0.0 through pi asin(double a) Returns the arc sine of a, in the range of -pi/2 through pi/2 atan(double a) Returns the arc tangent of a, in the range of -pi/2 through pi/2 atan2(double a, double b) Converts rectangular coordinates (a, b) to polar (r, theta) ceil(double a) Returns the "ceiling," or smallest whole number greater than or equal to a cos(double) Returns the trigonometric cosine of an angle exp(double a) Returns the exponential number e(2.718...) raised to the power of a floor(double a) Returns the "floor," or largest whole number less than or equal to a log(double a) Returns the natural logarithm (base e) of a max(int a, int b) Takes two int values, a and b, and returns the greater of the two max(long a, long b) Takes two long values, a and b, and returns the greater of the two max(float a, float b) Takes two float values, a and b, and returns the greater of the two max(double a, double b) Takes two double values, a and b, and returns the greater of the two min(int a, int b) Takes two integer values, a and b, and returns the smaller of the two min(long a, long b) Takes two long values, a and b, and returns the smaller of the two min(float a, float b) Takes two float values, a and b, and returns the smaller of the two min(double a, double b) Takes two double values, a and b, and returns the smaller of the two pow(double a, double b) Returns the number a raised to the power of b random() Generates a random number between 0.0 and 1.0 rint(double) Returns the closest integer to the argument, but as a floating-point number round(float) Rounds off a float value by first adding 0.5 to it and then returning the largest integer that is less than or equal to this new value round(double) Rounds off a double value by first adding 0.5 to it and then returning the largest integer that is less than or equal to this new value sin(double) Returns the trigonometric sine of an angle sqrt(double) Returns the square root of a tan(double) Returns the trigonometric tangent of an angle toDegrees(double) Translates radians to degrees toRadians(double) Translates degrees to radians

 6.17.Math Functions 6.17.1. Math Class Methods 6.17.2. Use math functions 6.17.3. Testing the Math class methods 6.17.4. Floating Point Number Enhancements in JDK 6 6.17.5. Math.scalb 6.17.6. Math.getExponent 6.17.7. Math.nextAfter 6.17.8. Math.nextUp 6.17.9. Math.copySign 6.17.10. Demonstrate toDegrees() and toRadians(). 6.17.11. Find absolute value of float, int, double and long using Math.abs 6.17.12. Find ceiling value of a number using Math.ceil 6.17.13. Find exponential value of a number using Math.exp 6.17.14. Find floor value of a number using Math.floor 6.17.15. Find maximum of two numbers using Math.max 6.17.16. Find natural logarithm value of a number using Math.log 6.17.17. Find power using Math.pow 6.17.18. Find square root of a number using Math.sqrt 6.17.19. Round Java float and double numbers using Math.round 6.17.20. Math.min 6.17.21. Normalizes an angle to a relative angle. 6.17.22. Normalizes an angle to an absolute angle. 6.17.23. Normalizes an angle to be near an absolute angle 6.17.24. Calculate the floor of the log, base 2 6.17.25. Greatest Common Divisor (GCD) of positive integer numbers 6.17.26. Least Common Multiple (LCM) of two strictly positive integer numbers 6.17.27. Moving Average 6.17.28. Normalize an angle in a 2&pi wide interval around a center value. 6.17.29. Returns n!. Shorthand for n Factorial, the product of the numbers 1,...,n as a double. 6.17.30. Returns n!. Shorthand for n Factorial, the product of the numbers 1,...,n. 6.17.31. Returns the hyperbolic cosine of x. 6.17.32. Returns the hyperbolic sine of x. 6.17.33. Returns the natural log of the (http://mathworld.wolfram.com/BinomialCoefficient.html) Binomial Coefficient 6.17.34. Returns the natural logarithm of n!. 6.17.35. Round the given value to the specified number of decimal places. The value is rounded using the BigDecimal.ROUND_HALF_UP method. 6.17.36. Value is rounded using the given method which is any method defined in BigDecimal 6.17.37. sqrt(a^2 + b^2) without under/overflow