num2str

Purpose

Number to string conversion.

Synopsis

s = num2str(x)
s = num2str(x,precision)

Description

num2str converts numbers to their string representations. This function is useful for labeling and titling plots with numeric values.

s = num2str(x) converts the scalar number x into a string representation s with roughly four digits of precision and an exponent if required.

s = num2str(x,prec) converts the scalar number x into a string representation s with maximum precision specified by precision.

Examples

num2str(pi) is '3.142'.

num2str(eps) is '2.22e-16'.

Algorithm

num2str uses sprintf. If desired, the file can be modified to change the number of digits.

See Also

fprintf, hex2num, int2str, setstr, sprintf

(c) Copyright 1994 by The MathWorks, Inc.