Symbolic collect and display

I would lie to display the coefficients before the expansion terms of the cos one by one.

syms x y
f = expand(sin(x + 3*y));
coeffs_cosy = collect(f, cos(y))

How can the terms before the cos^n be displayed one by one?

This is short but for more complicated expressions, several dimensions the taylor series output text that cannot be displayed.

Answer 1

[Star Strider]

I am not certain what result you want.

Try this:

[cfs,trm] = coeffs(coeffs_cosy, cos(y))

producing:

cfs =
[ 4*sin(x), 4*cos(x)*sin(y), -3*sin(x), -cos(x)*sin(y)]
 
trm =
[ cos(y)^3, cos(y)^2, cos(y), 1]

Experiment with the coeffs arguments to get the result you want.

[Ole]

Thank you.

[Star Strider]

As always, my pleasure!