用 RSolveValue 直接获得 OΔE 解的表达式.
| In[1]:= |  X |
| Out[1]= |  |
解的绘图.
| In[2]:= |  X |
| Out[2]= |  |
直接计算 OΔE 的解的差分.
| In[3]:= |  X |
| Out[3]= |  |
解涉及因变量的任意表达式.
| In[4]:= |  X |
| Out[4]= |  |
| In[5]:= |  X |
| Out[5]= |  |
| In[6]:= |  X |
| Out[6]= |  |
得到非线性二阶 OΔE 的纯函数解.
| In[7]:= |  X |
| In[8]:= |  X |
| Out[8]= |  |
对解进行验证.
| In[9]:= |  X |
| Out[9]= |  |
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