How can i give difference to Variable

How can i give difference to number by '

S

S'

S''

And i will use it in next calculation.

U=S+1

U'=S'+2

P=S''+5 ....etc

But error message appeared

Answer 1

[Matt J]

Not for me. It should Hermitian transpose S for as many times as you apply the '.

    >> S=1:5;  S'''''''''''

    ans =

         1
         2
         3
         4
         5

Answer 2

[Matt J]

You haven't shown your error (or the code that generates it), so I have to guess what you are doing, but you cannot include non-alphanumeric characters other than underscores in the names of variables.

In any case, to solve a linear system of equations, you wouldn't define different variables. You would write the equations in matrix-vector form

   A*x=b

and solve via

   x=A\b

This is MATLAB, after all!

[Light]

I'm a electrical engineering student. I need different variables.

    dQ(max(negcolumn))=dx(max(negcolumn))*U(max(negcolumn)).^2*10.^-6;
    S'(max(negcolumn))=S(max(negcolumn))-dQ(max(negcolumn))*1i;
    S''(max(onerow))=S'(max(negcolumn))+S(max(onerow));

S is changed in everystep.

And S' is used in next step

    dU01'=(real(S')*real(R01)+imag(S')*imag(R01))./U0/1000;
    dU01''=(real(S')*imag(R01)-imag(S')*real(R01))./U0/1000;
    U01t=sqrt((U0-dU01').^2+dU01''.^2);

If S S' S'' is only defined by S i can't get real S' value. Is it impossible in MATLAB??

[Matt J]

None of what you said implies that S' has to have an apostrophe in its name. You could choose another name for it.

None of what you said that S and S' have to be separate variables, either. You could call them S(1) and S(2) instead, making them part of the same vector, S.

[Light]

I've already called them S(1) , S(2) ... (max(onerow)) is variable if it is defined by 2 S'(max(negcolumn)) will be changed S'(2)

But now accepting ur offer i will choose another name.

Thank you!