I need to find the intersection between the det_a function and zero, return the values, and plot the intersections. Here's what I did so far
det_a = sin(x).*cosh(x) - cos(x).*sinh(x);
The plot can be seen here:
I haven't found any easy method of doing this, I've tried using the find and intersect functions but they only return one value. Any help would be appreciated, thanks in advance!