roundn

(Not recommended) Round to multiple of 10ⁿ

The roundn function is not recommended. Use the round function instead. For more information, see Compatibility Considerations.

Syntax

Y = roundn(X,n)

Description

Y = roundn(X,n) rounds each element of X to the nearest multiple of 10ⁿ.

Examples

Round to Nearest Hundredth

Round pi to the nearest hundredth.

Y = roundn(pi,-2)

Y =

    3.1400

Input Arguments

X — Input array

scalar | vector | matrix | multidimensional array

Input array, specified as a scalar, vector, matrix, or multidimensional array. For complex values of X, the function rounds the real and imaginary parts independently.

Data Types: single | double
Complex Number Support: Yes

n — Exponent of 10

scalar integer

Exponent of 10, specified as a scalar integer.

Version History

Introduced before R2006a

R2014b: roundn is not recommended

The roundn function is not recommended. Use the round function instead. Note that when you update your code, you must reverse the sign of n.

Not Recommended	Recommended
Y = roundn(X,n)	Y = round(X,-n)