javascript/Cheat-Sheets/Math.js at main · ankityv/javascript · GitHub

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//# JAVASCRIPT MATH

var pi = Math.PI; // 3.141592653589793
Math.round(4.4); // = 4 - rounded
Math.round(4.5); // = 5
Math.pow(2, 8); // 256 = 2 to the power of 8
Math.sqrt(49); // = 7 - square root
Math.abs(-3.14); // 3.14 - absolute. positive value
Math.ceil(3.14); // 4 - rounded up
Math.floor(3.99); // 3 = rounded down
Math.sin(0); // 0 = sine
Math.cos(Math.PI); // OTHERS: tan, atan, asin, acos.
Math.min(0, -3, 2, -2); // -2 - LOWEST VALUE
Math.max(0, -3, -2, 2); // 2 - highest value
Math.log(1)  // 0 natural logarithm
Math.exp(1)  // 2.7182(E,x)
Math.random()  // random number between 0 and 1
Math.floor(Math.random() * 5)  // random integer, from 1 to 5