Math.round(3.14159 * 100) / 100 // 3.14
3.14159.toFixed(2); // 3.14 returns a string
parseFloat(3.14159.toFixed(2)); // 3.14 returns a number
Math.round(3.14159) // 3
Math.round(3.5) // 4
Math.floor(3.8) // 3
Math.ceil(3.2) // 4//There are meny ways of rounding...
Math.floor(5.5) //Answer 5, it alwas rounds down.
Math.round(5.5) //Answer 6, it simpily rounds to the closest whole number.
Math.ceil(5.5) //Answer 6, it alwas rounds up.
//You can do more things too...
Math.floor(5.57 * 10) / 10 //Answer 5.5, the number turns into 55.7, Then gets floored (55.0), Then gets divied, (5.5).double number = 1.5362
int rounded = Math.Round(number)
//rounds number to 2
double rounded_2 = Math.Round(number, 2)
//rounds number to 1.54var avg=10.55;
console.log(Math.round(avg)); //Prints 11console.log(Math.round(5.95)); // output: 6
console.log(Math.round(5.23)); // output: 5
console.log(Math.round(-15.5)); // output: -15import java.lang.*;
public class MathDemo {
public static void main(String[] args) {
//what is Math.round(3.45)
double x = 3.45;
System.out.println("Math.round(" + x + ")=" + Math.round(x));
}
}
//the Output is 3