a small question of the sym

Hi I don't know how to get the numerical number after define sym. a simple code is shown as follows, how to get the value of m when x=1? Thanks

syms x n=sin(x^2); m=diff(n,x);

[Sean de Wolski]

Well-written question; you get a vote!

Answer 1

[Sean de Wolski]

double(m)

Edit:

You'll need to use subs to fill in the value:

subs(m,'x',1)

Answer 2

[xingyu]

But there is something wrong. do you mean:

x=1; n=double(n); m=double(m);

but it doesn't work

[Walter Roberson]

x = 1; double(subs(n))

OR

double(subs(n,x,1)) %without assigning to x