By default the program draws a blue line displaying the vertical asymptote of a function, which is very helpful. If I could get it to display a line through the horizontal asymptote, & print their value, if would be very helpful.
I attempted the following to get the vertical asymptote & had no luck at all:
ans = solve( 7/(x-3) == 0, x)
v0 = ans[0].rhs()
print(v0)
Error message:
Traceback (click to the left of this block for traceback)
...
IndexError: list index out of range
