Todos sorted by importance

Add a description for frontend.
- What is calculated? The format of the result
- What is Q circle?
- What data formats are supported?
Demo
Support .snp
- .s3p and more
Add button to copy choosen fragment to compare with other programs.
Advanced output options (only frontend):
- Option to choose output values precision
Add approximation for second chart (abs(S) from f)
Add impedance input option (Z)
- additional field for omega | from .snp
- convertion to reflection coeffitient (explanation: https://radioprog.ru/post/195)
Codestyle fix:
- Format all code files
- Make a good code structure... If you can.
Make all computations extra precise:
- import sympy.mpmath as mp ..?
- from sympy.mpmath import * ..?
- mp.dps = ~50 or something else.
- make sure that result' ~ result
- increase mp.dps while 7 digits after dot are not stable
Advanced file loading:
- Show file preview
- Options to skip first and last lines
Advanced file preview: highlight choosen data fragments
Make charts more interactive
Make an option to pass the whole program to .html site via iframe? - It works, but where to host?
Add support lines for smith chart?