**Maple package
NOPH 1.0**

**A Simple User Guide****
****Copyright Statement****
****Examples****
****Publications**

Based on Wu’s
elimination method, the homotopy analysis method as well as
Padé technique, a Maple package **NOPH 1.0**
is developed, which can automatically deliver accurate approximate solutions of
nonlinear oscillation system with the form

subject
to initial conditions

_{k}(0)=a_{k}_{ }+d_{k}, (0)=0,
_{i}(0)=a_{i}+d_{i}, (0)=wb_{i},

where the dependent
variable (t)=(_{1}(t), ¼ ,_{k}(t)), the
mean of motion **d**=(d_{1}, ¼ ,d_{k}), w denotes the frequency of
oscillation, the independent variable t denotes time, the dot denotes differentiation
with respect to t, is
an algebraic or rational function of and .

As an open resource, the **NOPH 1.0**
can be free downloaded at the
following hyperlinks. The higher version of the **NOPH** will be issued in
future.

**Source Code: **Zip form of NOPH 1.0 (for Maple 15)