round

Round to the nearest integer (or to a specified number of digits).

Syntax

Y = round(X)             % script mode
Y = round(X, digits)     % Excel-compatible mode

Description

In script mode, returns each element of X rounded to the nearest integer using banker’s-style nearest rounding.

In Excel-compatible mode, the optional digits argument controls the rounding precision: positive values round to fractional digits, negative values round to tens, hundreds, etc.

Examples

round(3.4)             % 3
round(3.5)             % 4
round(-2.5)            % -3
round(123.456, 2)      % 123.46  (Excel-compat)
round(123.456, -1)     % 120     (Excel-compat)

See also

• floor — Round toward negative infinity.
• nthroot — Real n-th root of an array.