I have a time- and depth-varying function, simplified to:

```
def f(z,t):
return np.exp(-z)*np.sin(t-z)
z = np.linspace(0,3000,num=3001)
t = np.arange(0,40000,4000)
```

I want to plot the the result for all z at each time step in t, resulting in something like this:

but I don't know how. I'm sure it's very simple, but I'm not used to doing this in python.

```
import matplotlib.pyplot as plt
import numpy as np
def f(z,t):
return np.exp(-z)*np.sin(t-z)
z = np.linspace(0,5,3001)
t = np.arange(0,40000,4000)
for tval in t:
plt.plot(z, f(z, tval))
plt.show()
```

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