sprintf function:

The sprintf function works precisely like the fprintf function, but rather than printing it generates a string. Here are some illustrations in which the output is not suppressed and hence the value of the string variable is shown:

>> sent1 = sprintf('The value of pi is %.2f', pi)

sent1 =

The value of pi is 3.14

>> sent2 = sprintf('Some numbers: %5d, %2d', 33, 6)

sent2 =

Some numbers:    33,  6

>> length(sent2)

ans =

23

In the illustration below, on the other hand, the outcome of the assignment is suppressed; therefore the string is generated including an arbitrary integer and stored in the string variable. Then, few exclamation points are concatenated to that string.

>> phrase = sprintf('A random integer is %d', .  .  .

randint(1,1,[5,10]));

>> strcat(phrase, '!!!')

ans =

A random integer is 7!!!

All the conversion specifiers which can be used in the fprintf function can also be used in the sprintf function.