Function round
Round a value towards the nearest integer.
For matrices, the function is evaluated element wise.
Syntax
math.round(x)
math.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 |
Throws
Examples
math.round(3.22) // returns number 3
math.round(3.82) // returns number 4
math.round(-4.2) // returns number -4
math.round(-4.7) // returns number -5
math.round(3.22, 1) // returns number 3.2
math.round(3.88, 1) // returns number 3.9
math.round(-4.21, 1) // returns number -4.2
math.round(-4.71, 1) // returns number -4.7
math.round(math.pi, 3) // returns number 3.142
math.round(123.45678, 2) // returns number 123.46
const c = math.complex(3.2, -2.7)
math.round(c) // returns Complex 3 - 3i
math.round([3.2, 3.8, -4.7]) // returns Array [3, 4, -5]
See also
ceil,
fix,
floor