formula

Return the body, or definition, of a symbolic function by using formula.

syms x y
f(x,y) = x + y;
formula(f)

ans = $$x+y$$

If the symbolic function does not have a definition, formula returns the symbolic function.

syms g(x,y)
formula(g)

ans = $$g\left(x,y\right)$$

Return the body, or definition, of a symbolic matrix function by using formula.

syms A 2 matrix
syms f(A) 2 matrix keepargs
f(A) = A*A - 3*A + 2*eye(2);
formula(f)

ans = $$2\hspace{0.17em}{\mathrm{I}}_2-3\hspace{0.17em}A+A^2$$

If the symbolic matrix function does not have a definition, formula returns the symbolic matrix function.

syms g(A) [1 2] matrix keepargs
formula(g)

ans = $$g\left(A\right)$$