mathjs/docs/reference/functions/ceil.md

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)

Parameters

Parameter	Type	Description
x	Number | BigNumber | Boolean | Complex | Array | Matrix | null	Number to be rounded

Returns

Type	Description
Number | BigNumber | Complex | Array | Matrix	Rounded value

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

var c = math.complex(3.2, -2.7);
math.ceil(c);                 // returns Complex 4 - 2i

math.ceil([3.2, 3.8, -4.7]);  // returns Array [4, 4, -4]

See also

floor, fix, round