ploting function and its derivative error

I want to run this code but I am getting error conversion to double from sym is not possible please help

clear all

close all

syms x y z t

f=log(x)+sin(x);

y=diff(f,x,1);

z=diff(f,x,4);

t=diff(f,x,5);

x=0:1;

plot(f,x);

hold on

plot(y,x);

hold on

plot(z,x);

hold on

plot(t,x);

hold off

title('multiple plots of function and its higher order derivatives');

xlabel('x');

ylabel('y');

axis square

grid;

Answer 1

[Star Strider]

Use the fplot function:

syms x y z t
f=log(x)+sin(x);
y=diff(f,x,1);
z=diff(f,x,4);
t=diff(f,x,5);
x=0:1; 

figure
fplot(f,x);
hold on
fplot(y,x);
fplot(z,x);
fplot(t,x);
hold off
title('multiple plots of function and its higher order derivatives');
xlabel('x');
ylabel('y');
axis square
grid
xlim([0  1E-3])                         % <- AADDED (Optional)

.