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ceil()

Calculates the closest integer value that is greater than or equal to a number.

For example, calling ceil(9.03) and ceil(9.97) both return the value 10.

Examples

ceil example 1

function setup()
  size(100, 100)

  background(200)

  -- Use RGB color with values from 0 to 1.
  colorMode(RGB, 1)

  noStroke()

  -- Draw the left rectangle.
  local r = 0.3
  fill(r, 0, 0)
  rect(0, 0, 50, 100)

  -- Round r up to 1.
  r = ceil(r)

  -- Draw the right rectangle.
  fill(r, 0, 0)
  rect(50, 0, 50, 100)

  describe('Two rectangles. The one on the left is dark red and the one on the right is bright red.')
end

Syntax

ceil(n)

Parameters

Parameter
n Number: number to round up.

Returns

Number: rounded up number

This reference page contains content adapted from p5.js and Processing by p5.js Contributors and Processing Foundation, licensed under CC BY-NC-SA 4.0.