```python
from sympy import *
from util import *
init_printing()
```


```python
x, y = symbols('x y')
K = Function('K')(x,y)
```


```python
u = exp(-x - y**2)
```


```python
f = - (K*u.diff(x)).diff(x) - (K*u.diff(y)).diff(y)
f
```


```python
f1 = f.subs(K, (x+y)**5).simplify()
f1
```


```python
lua_code(f1)
```




    '(-4*y^2*(x + y)^5 + 10*y*(x + y)^4 + (x + y)^5 + 5*(x + y)^4)*math.exp(-x - y^2)'




```python

```

58e5b754848fb71aea3755b2baa1ef7e0bb6b139
ipynb
Jupyter Notebook
notebooks/poisson_mms.ipynb
NicoSchlw/tandem
3a08b5a7ae391c1675c5cbfdad77260d4a0115cc
BSD-3-Clause
2021-11-03T17:11:00.000Z
2022-02-16T07:51:01.000Z
notebooks/poisson_mms.ipynb
NicoSchlw/tandem
3a08b5a7ae391c1675c5cbfdad77260d4a0115cc
BSD-3-Clause
2020-05-18T14:51:13.000Z
2021-12-16T12:56:31.000Z
notebooks/poisson_mms.ipynb
NicoSchlw/tandem
3a08b5a7ae391c1675c5cbfdad77260d4a0115cc
BSD-3-Clause
2020-10-23T08:04:42.000Z
2021-11-15T12:23:59.000Z
Qwen/Qwen-72B
1. YES
2. YES