type/laurentseries
¶$\operatorname{type}(f, {\mathit laurentseries})$ $\operatorname{type}(f, {\mathit laurentseries}(K))$ $\operatorname{type}(f, {\mathit laurentseries}(K, v))$
libname := libname, FileTools:-JoinPath(["maple","lib","dcfun.mla"],base=homedir):
with(dcfun):
Let us give a very simple example.
f := series(sin(x*y)/x^5, x);
$$y \,x^{-4}-\frac{1}{6} y^{3} x^{-2}+\frac{y^{5}}{120}+\mathrm{O}\! \left(x^{2}\right)$$
type(f, laurentseries);
$$\mathit{true}$$
type(f, laurentseries(anything,x));
$$\mathit{true}$$
type(f, laurentseries(rational, x));
$$\mathit{false}$$
type(f, laurentseries(polynom(anything, y), x));
$$\mathit{true}$$