I am not certain that I understand what you want to do.
One approach:
function y = fun_Htimesx(x, H , transx_many, transy_many, qx, qy, Lx, Ly)
If you only want to pass ‘x’ to it (for example in an optimisation function call), the function handle becomes:
@(x)fun_Htimesx(x, H , transx_many, transy_many, qx, qy, Lx, Ly)
providing that all the other argumnents are already present in the calling script (or function script) workspace. Otherwise, just pass ‘x’ to it if that is the only argument that changes. The others will be passed automatically, providing they are preseent in the calling script (or function script) workspace.
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