MATLAB Programming

Calling Functions
e = polyeig(A0, A1, A2)
Function calls written in command syntax pass all arguments as string
literals. This expression passes the strings 'mydata.mat', 'x', 'y', and'z'
to the save function:
save mydata.mat x y z
The following examples show the difference between passing arguments in
the two syntaxes.
Passing Arguments — Example 1. Calling disp with the function syntax,
disp(A), passes the value of variable A to the disp function:
A = pi;
disp(A)
3.1416
% Function syntax
Calling it with the command syntax, disp A, passes the string 'A':
A = pi;
disp A
A
% Command syntax
Passing Arguments — Example 2. Passing two variables representing
equal strings to the strcmp function using function and command syntaxes
gives different results. The function syntax passes the values of the
arguments. strcmp returns a 1, which means they are equal:
str1 = 'one';
str2 = 'one';
strcmp(str1, str2)
ans =
1 (equal)
% Function syntax
The command syntax passes the names of the variables, 'str1' and 'str2',
which are unequal:
str1 = 'one';
str2 = 'one';
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