How do i remove conj from differention?

My first task was to remove conj from my code anytime i transposed and i found posts to help me with it. I know want to how to remove them when i differentiate. There is a function y(t) but in the matrix output it is conj(diff(y,t)). I only ant the diff. How can i remove it. I want to end with the simplest math and the many conjs are ruining it.

clear all

syms x v s a y z r t real
syms x(t) y(t) 
assumeAlso([y(t),x(t)],'real')



A=[x, diff(y(t),t), s;
 y, z,  r;
 s x(t) a;];

A'

Output:

ans(t) =
 
[               x(t), y(t),    s]
[conj(diff(y(t), t)),    z, x(t)]
[                  s,    r,    a]

Answer 1

[Chunru]

clear all
syms x v s a y z r t real
syms x(t) y(t) 
assumeAlso([y(t),x(t)],'real')
A=[x, diff(y(t),t), s;
 y, z,  r;
 s x(t) a;];
A.'   % use transpose .' instead of complex conjugate transpose ()'

ans(t) =