Div-series procedure
Use the results of exercises 3.60
and 3.61
to define a procedure
div-series
that divides two power series.
Div-series
should work for any two series, provided that the denominator series begins with a nonzero constant term. (If the denominator has a zero constant term, then
div-series
should signal an error.) Show how to use
div-series
together with the result of exercise
3.59
to generate the power series for tangent.