Function ceil #

Round a value towards plus infinity If x is complex, both real and imaginary part are rounded towards plus infinity. For matrices, the function is evaluated element wise.

Syntax #

math.ceil(x)
math.ceil(x, n)
math.ceil(unit, valuelessUnit)
math.ceil(unit, n, valuelessUnit)

Parameters #

Parameter	Type	Description
`x`	number \| BigNumber \| Fraction \| Complex \| Unit \| Array \| Matrix	Value to be rounded
`n`	number \| BigNumber \| Array	Number of decimals Default value: 0.
`valuelessUnit`	Unit	A valueless unit

Returns #

Type	Description
number \| BigNumber \| Fraction \| Complex \| Unit \| Array \| Matrix	Rounded value

Throws #

Type | Description —- | ———–

Examples #

math.ceil(3.2)               // returns number 4
math.ceil(3.8)               // returns number 4
math.ceil(-4.2)              // returns number -4
math.ceil(-4.7)              // returns number -4

math.ceil(3.212, 2)          // returns number 3.22
math.ceil(3.288, 2)          // returns number 3.29
math.ceil(-4.212, 2)         // returns number -4.21
math.ceil(-4.782, 2)         // returns number -4.78

const c = math.complex(3.24, -2.71)
math.ceil(c)                 // returns Complex 4 - 2i ...
math.ceil(c, 1)              // returns Complex 3.3 - 2.7i

const unit = math.unit('3.241 cm')
const cm = math.unit('cm')
const mm = math.unit('mm')
math.ceil(unit, 1, cm)      // returns Unit 3.3 cm ...
math.ceil(unit, 1, mm)      // returns Unit 32.5 mm

math.ceil([3.2, 3.8, -4.7])  // returns Array [4, 4, -4]
math.ceil([3.21, 3.82, -4.71], 1)  // returns Array [3.3, 3.9, -4.7]

History #

Version	Comment
v14	Handle Units
v7.4	Allow second “precision” argument
v5.7	Support tolerance for round-off errors
v2	Handle Fractions
v0.1	Created