| MATLAB Functions | Help Desk |
sprintf
Write formatted data to a string
s = sprintf(format,A,...) [s,errrmsg] = sprintf(format,A,...)
s = sprintf(format,A,...)
formats the data in matrix A (and in any additional matrix arguments) under control of the specified format string, and returns it in the MATLAB string variable s. sprintf is the same as fprintf except that it returns the data in a MATLAB string variable rather than writing it to a file.
The format string specifies notation, alignment, significant digits, field width, and other aspects of output format. It can contain ordinary alphanumeric characters; along with escape characters, conversion specifiers, and other characters, organized as shown below: 
For more information see "Tables" and "References."
[s,errrmsg] = sprintf(format,A,...)
returns an error message string errmsg if an error occurred or an empty matrix if an error did not occur.
The sprintf function behaves like its ANSI C language sprintf() namesake with certain exceptions and extensions. These include:
%o, %u, %x, and %X.The underlying C data type is a float rather than an unsigned integer. |
|
The underlying C data type is a double rather than an unsigned integer. |
For example, to print a double-precision value in hexadecimal, use a format
like '%bx'.
sprintf is vectorized for the case when input matrix A is nonscalar. The format string is cycled through the elements of A (columnwise) until all the elements are used up. It is then cycled in a similar manner, without reinitializing, through any additional matrix arguments.
Escape Characters
\'' or ''
Conversion Specifiers Exponential notation (using an uppercase The more compact of
E as in 3.1415E+00)
%e or %f, as defined in [2]. Insignificant zeros do not print.
% and the conversion character.
Other Characters A digit string specifying the minimum number of digits to be printed. A digit string including a period (.) specifying the number of digits to be printed to the right of the decimal point.
|
| |
int2str, num2str, sscanf