, MATLAB - /. , SetDelayed . , , , .
, , -, := ( , ). :
syms x y z; %
x=y+2; %
f=@(x)x.^2; %
f(x)
ans =
(y + 2)^2
%
f(z)
ans =
z^2
, f x, . x, , x=1/y f(x) x. , f / . .
f(1:5)
ans =
1 4 9 16 25
, :=, , , , (.. , ). , MATLAB - , . :
y=z^3; %
f(x)
ans =
(y + 2)^2 %
Mathematica (z^3+2)^2.
Clear[y, z, x, f]
f[x_] := x^2;
y := z^3; x := y + 2;
f[x]
Out[1]= (2 + z^3)^2
, , . , , (, C For Mathematica).