Math
The Math object allows performing mathematical operations in JavaScript. The Math object is static and doesn't have a constructor. One can use method and properties of Math object without creating a Math object first. For accessing its property one can use Math.property. Some of the math properties are described below: __
Math.E // returns Euler's number
Math.PI // returns PI
Math.SQRT2 // returns the square root of 2
Math.SQRT1_2 // returns the square root of 1/2
Math.LN2 // returns the natural logarithm of 2
Math.LN10 // returns the natural logarithm of 10
Math.LOG2E // returns base 2 logarithm of E
Math.LOG10E // returns base 10 logarithm of E
Examples of some of the math methods
Math.pow(8, 2); // 64
Math.round(4.6); // 5
Math.ceil(4.9); // 5
Math.floor(4.9); // 4
Math.trunc(4.9); // 4
Math.sign(-4); // -1
Math.sqrt(64); // 8
Math.abs(-4.7); // 4.7
Math.sin(90 * Math.PI / 180); // 1 (the sine of 90 degrees)
Math.cos(0 * Math.PI / 180); // 1 (the cos of 0 degrees)
Math.min(0, 150, 30, 20, -8, -200); // -200
Math.max(0, 150, 30, 20, -8, -200); // 150
Math.random(); // 0.44763808380924375
Math.log(2); // 0.6931471805599453
Math.log2(8); // 3
Math.log10(1000); // 3
To access its method, one can call its methods directly with arguments wherever necessary.
| Method | Description |
|---|---|
abs(x) |
Returns absolute value of x |
acos(x) |
Returns arccosine of x, in radians |
acosh(x) |
Returns hyperbolic arccosine of x |
asin(x) |
Returns arcsine of x, in radians |
asinh(x) |
Returns hyperbolic arcsine of x |
atan(x) |
Returns arctangent of x as a numeric value between -PI/2 and PI/2 radians |
atan2(y,x) |
Returns arctangent of the quotient of its arguments |
atanh(x) |
Returns hyperbolic arctangent of x |
crbt(x) |
Returns cubic root of x |
ceil(x) |
Returns rounded upwards to the nearest integer of x |
cos(x) |
Returns consine of x, in radians |
cosh(x) |
Returns hyperbolic cosine of x |
exp(x) |
Returns exponential value of x |
floor(x) |
Returns round downwards to the neareast integer of x |
log(x) |
Returns natural logarithmetic of x |
max(x,y,z,... n) |
Returns number with the highest value |
min(x,y,z,... n) |
Returns number with the lowest value |
pow(x,y) |
Returns value of x to the power of y |
| random() | Returns number between 0 and 1 |
| round(x) | Rounds number to the neareast x |
| sign(x) | Returns if x is negative, null or positive (-1,0,1) |
| sin(x) | Returns sine of x, in radians |
| sinh(x) | Returns hyperbolic sine of x |
| sqrt(x) | Returns square root of x |
| tan(x) | Returns tangent of an angle |
| tanh(x) | Returns hyperbolic tangent of x |
| trunc(x) | Returns integer part of a number (x) |