![](attachments/Pasted%20image%2020220126140638.png)
![](attachments/Pasted%20image%2020220126140702.png)
![](attachments/Pasted%20image%2020220126140730.png)
![](attachments/Pasted%20image%2020220126140830.png)
Inversion of the [fourier transform](fourier%20transform):
![](attachments/Pasted%20image%2020220126140753.png)

![](attachments/2023-03-04more.png)