Приложение для вычисления ковариации, из екселя

At first glance, Ilya seemed shy to me, but we quickly found a common language, and in 9 days we were able to implement the diploma project. Since I was checked by the diploma supervisor, the tasks were gradual but quite unexpected, so sometimes the freelancer had to sit for several days and develop the code without stopping. so what I ordered at first, after a few days became a full-fledged automated system of screening data, with an implemented interface. It is also worth noting that Ilya was constantly in touch with me.
I am more than satisfied with everything.