converting sym to double

i have been working on this code

syms k

K = zeros(8);

K(1,1) = 0.7499*k

MATLAB shows the error "unable to convert expression into double array"

Also in general How do I create a matrix with symbolic expressions as element values for any given matrix.

Answer 1

[Sriram Tadavarty]

Hi Parth,

The way the syms is used here is the issue. See the link, which provides examples to get started.

Do not define the K with double variables and that should help. Instead directly create the matrix with those many symbolic variables.

Hope this helps.

Regards,

Sriram

Answer 2

[Steven Lord]

Make K a sym array from the start. Then MATLAB doesn't need to convert the symbolic expression 0.7499*k when assigning into an element of K.

K = sym(zeros(8));

[Parth Jain]

yep this worked!!