MATLAB Programming

Characters and Strings
Specifier
x
X
Description
Hexadecimal notation (using lowercase letters a–f)
Hexadecimal notation (using uppercase letters A–F)
This example uses conversion characters to display the number 46 in decimal,
fixed-point, exponential, and hexadecimal formats:
A = 46*ones(1,4);
sprintf('%d %f %e %X', A)
ans =
46 46.000000 4.600000e+001 2E
Subtype. The subtype field is a single alphabetic character that immediately
precedes the conversion character. The following nonstandard subtype
specifiers are supported for the conversion characters %o, %u, %x, and%X.
b
t
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'.
The underlying C data type is a float rather than an unsigned integer.
Precision. precision in a formatting operator is a nonnegative integer that
tells MATLAB how many digits to the right of the decimal point to use when
formatting the corresponding input value. The precision field consists of a
nonnegative integer that immediately follows a period and extends to the
first alphabetic character after that period. For example, the specifier %7.3f,
has a precision of 3.
Here are some examples of how the precision field affects different types
of notation:
sprintf('%g %.2g %f %.2f', pi*50*ones(1,4))
ans =
157.08 1.6e+002 157.079633 157.08
2-49