Placeholder symbol from single value to vector?

Hello,

I need to take a general function of two unknowns, 'a' and 'p', convert it to a polynomial expression in 'a' and then take a Chebyshev polynomial decomposition in 'p'.

So far, I have set up 'p' as a symbol, I discretize the function in 'a', and use 'polyfit' to find coefficients (dependent on 'p'). But then I want to change 'p' to a vector and I am getting the error that the 'subs' command will only work with 'old' and 'new' of the same length.

Does anyone know how to work around this in Matlab?

Thanks!

Answer 1

[Walter Roberson]

What is the next step? If the further steps can be done numerically, then use matlabFunction() to convert the symbolic form to a function handle; you can pass vectors in as the arguments to the function so formed (operations will be element-by-element)