Method |
Declaration |
Purpose |
| Basic Math Methods (Functions): |
| Math.abs(x) |
int abs (int x) |
returns the absolute value of an integer. Also available for work with double or float. |
| Math.ceil(x) |
double ceil (double x) |
rounds up to a whole number.
ceil (11.2) rounds to 12.0
(not normal rounding) |
| Math.floor(x) |
double floor (double x) |
rounds down to a whole number.
floor(11.5) rounds to 11.0
(not normal rounding) |
| Math.hypot(a,b) |
double hypot (double a, double b) |
calculates the hypotenuse (c) of a right triangle where a and b are the legs. |
| Math.max(a,b) |
int max (int a, int b) |
returns the greater of the two integers passed. Also available for work with double or float. |
| Math.min(a,b) |
int min (int a, int b) |
returns the lesser of the two integers passed. Also available for work with double or float. |
| Math.PI |
double PI () |
returns a value close to the actual mathematical π |
Math.pow(x,y)
(exponent) |
double pow (double x, double y) |
calculates x to the power of y. If x is negative, y must be an integer. If x is zero, y must be a positive integer. |
Math.random(x)
(read more here)
|
double random (double x) |
returns a random floating point number between 0 and 1. |
| Math.round(x) |
double round (double x) |
rounds a double to the nearest integral using normal math rounding (either up or down). |
| Math.sqrt(x) |
double sqrt (double x) |
calculates the positive square root of x. (x is >= 0) |
| Exponential and Logarithmic Methods: |
| Math.exp(x) |
double exp (double x) |
returns e raised to the power of x where e is Euler's e = 2.71828... |
| Math.log(x) |
double log (double x) |
returns the natural logarithm of x, base e |
| Math.log10(x) |
double log10 (double x) |
returns the logarithm of x, base 10 |
| Trigonometric Methods: All work in radians rather than degrees. |
| Math.cos(x) |
double cos (double x) |
returns the cosine of x in radians |
| Math.sin(x) |
double sin (double x) |
returns the sine of x in radians |
| Math.tan(x) |
double tan (double x) |
returns the tangent of x in radians |
| Math.acos(x) |
double acos (double x)
(x is between 1 and -1)
|
returns the arc cosine of x
(the angle whose cosine is x) |
| Math.asin(x) |
double asin (double x)
(x is between 1 and -1) |
returns the arc sine of x
(the angle whose sine is x) |
| Math.atan(x) |
double atan (double x)
|
returns the arc tangent of x
(the angle whose tangent is x) |
| Math.atan2(y,x) |
double atan2 (double y, double x) |
converts rectangular coordinates (y, x) to polar coordinates (r, theta) |
| Math.toDegrees (double angrad) |
double toDegrees (double a) |
converts an angle in radians to degrees |
| Math.toRadians (double angdeg) |
double toRadians (double a) |
converts an angle in degrees to radians |
