**BUG**
Concise problem statement:
Lowest frequency on X axis = 1Hz when it should be 1mHz (0.001Hz)
Steps to reproduce bug:
1. Ctrl+R
Url:
https://easyeda.com/file_view_How-to-probe-Loop-Gain-01_NbcQE4fh5.htm
Browser:Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36