`floor`

Rounds toward negative infinity.

Category: Language Fundamentals > Operators and Elementary Operations

Syntax

Y = floor(X)

Rounds each element of X: toward negative infinity.

Description

floor returns the largest integer that is less than or equal to its argument. For negative numbers this moves away from zero: floor(-2.5) is -3, whereas fix(-2.5) is -2.

Combined with division, floor(a/b) gives the integer quotient, and a - b*floor(a/b) is mod(a,b).

Input arguments

X: Numeric array. For complex values the real and imaginary parts are processed separately. Integer types are returned unchanged.

Output arguments

Y: Array of the same size and class as X, holding integer values.

Example

floor([1.8 -1.2 2 -2.5])
floor(10/3)
7 - 3*floor(7/3)

Output

ans = 1×4

     1    -2     2    -3
ans = 3
ans = 1

floor