Daria Boteva
daria.boteva
Mathematical analysis, logarithming. We write with chalk on a board.
www.shutterstock.com/video/clip-30521575-stock-footage-ma...
396
views
0
faves
0
comments
Uploaded on September 10, 2017
Mathematical analysis, logarithming. We write with chalk on a board.
www.shutterstock.com/video/clip-30521575-stock-footage-ma...
396
views
0
faves
0
comments
Uploaded on September 10, 2017