interpolate in matlab

In MATLAB, string interpolation is done using the sprintf function. Here's an example:

main.m
name = 'John';
age = 30;
message = sprintf('My name is %s and I am %d years old.', name, age);
disp(message);
110 chars
5 lines

Output:

main.m
My name is John and I am 30 years old.
39 chars
2 lines

In the example above, %s is a placeholder for a string and %d is a placeholder for a decimal integer. The values of name and age are passed to sprintf as additional arguments after the format string.

You can also use the newer string interpolation syntax introduced in MATLAB R2016b using the dollar sign $ followed by parentheses:

main.m
name = 'John';
age = 30;
message = "My name is $name and I am $age years old.";
disp(message);
95 chars
5 lines

Output:

main.m
My name is John and I am 30 years old.
39 chars
2 lines

In the example above, the variables name and age are enclosed in curly braces ({}) inside the string. Note that this syntax is only available in MATLAB R2016b or later.