Function round
Round a value towards the nearest integer.
For matrices, the function is evaluated element wise.
Syntax
round(x)
round(x, n)
Parameters
Parameter |
Type |
Description |
x |
number | BigNumber | Fraction | Complex | Array | Matrix |
Number to be rounded |
n |
number | BigNumber | Array |
Number of decimals Default value: 0. |
Returns
Type |
Description |
number | BigNumber | Fraction | Complex | Array | Matrix |
Rounded value |
Examples
round(3.2); // returns number 3
round(3.8); // returns number 4
round(-4.2); // returns number -4
round(-4.7); // returns number -5
round(pi, 3); // returns number 3.142
round(123.45678, 2); // returns number 123.46
var c = complex(3.2, -2.7);
round(c); // returns Complex 3 - 3i
round([3.2, 3.8, -4.7]); // returns Array [3, 4, -5]
See also
ceil,
fix,
floor